About the Number

381342780

381342779 ← → 381342781

2進数表記:10110101110101101010000111100

漢数字表記:三億八千百三十四万二千七百八十

素因数分解:

2 2 × 3 2 × 5 1 × 7 1 × 13 1 × 31 1 × 751 1

素因数の和:817
約数の個数: 288
約数和(自身を含む): 1471561728
約数和(自身を除く): 1090218948

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 31, 35, 36, 39, 42, 45, 52, 60, 62, 63, 65, 70, 78, 84, 90, 91, 93, 105, 117, 124, 126, 130, 140, 155, 156, 180, 182, 186, 195, 210, 217, 234, 252, 260, 273, 279, 310, 315, 364, 372, 390, 403, 420, 434, 455, 465, 468, 546, 558, 585, 620, 630, 651, 751, 780, 806, 819, 868, 910, 930, 1085, 1092, 1116, 1170, 1209, 1260, 1302, 1365, 1395, 1502, 1612, 1638, 1820, 1860, 1953, 2015, 2170, 2253, 2340, 2418, 2604, 2730, 2790, 2821, 3004, 3255, 3276, 3627, 3755, 3906, 4030, 4095, 4340, 4506, 4836, 5257, 5460, 5580, 5642, 6045, 6510, 6759, 7254, 7510, 7812, 8060, 8190, 8463, 9012, 9763, 9765, 10514, 11265, 11284, 12090, 13020, 13518, 14105, 14508, 15020, 15771, 16380, 16926, 18135, 19526, 19530, 21028, 22530, 23281, 24180, 25389, 26285, 27036, 28210, 29289, 31542, 33795, 33852, 36270, 39052, 39060, 42315, 45060, 46562, 47313, 48815, 50778, 52570, 56420, 58578, 63084, 67590, 68341, 69843, 72540, 78855, 84630, 87867, 93124, 94626, 97630, 101556, 105140, 116405, 117156, 126945, 135180, 136682, 139686, 146445, 157710, 162967, 169260, 175734, 189252, 195260, 205023, 209529, 232810, 236565, 253890, 273364, 279372, 292890, 302653, 315420, 325934, 341705, 349215, 351468, 410046, 419058, 439335, 465620, 473130, 488901, 507780, 585780, 605306, 615069, 651868, 683410, 698430, 814835, 820092, 838116, 878670, 907959, 946260, 977802, 1025115, 1047645, 1210612, 1230138, 1366820, 1396860, 1466703, 1513265, 1629670, 1757340, 1815918, 1955604, 2050230, 2095290, 2118571, 2444505, 2460276, 2723877, 2933406, 3026530, 3075345, 3259340, 3631836, 4100460, 4190580, 4237142, 4539795, 4889010, 5447754, 5866812, 6053060, 6150690, 6355713, 7333515, 8474284, 9079590, 9778020, 10592855, 10895508, 12301380, 12711426, 13619385, 14667030, 18159180, 19067139, 21185710, 25422852, 27238770, 29334060, 31778565, 38134278, 42371420, 54477540, 63557130, 76268556, 95335695, 127114260, 190671390, 381342780]

約数ペア:
[(1, 381342780), (2, 190671390), (3, 127114260), (4, 95335695), (5, 76268556), (6, 63557130), (7, 54477540), (9, 42371420), (10, 38134278), (12, 31778565), (13, 29334060), (14, 27238770), (15, 25422852), (18, 21185710), (20, 19067139), (21, 18159180), (26, 14667030), (28, 13619385), (30, 12711426), (31, 12301380), (35, 10895508), (36, 10592855), (39, 9778020), (42, 9079590), (45, 8474284), (52, 7333515), (60, 6355713), (62, 6150690), (63, 6053060), (65, 5866812), (70, 5447754), (78, 4889010), (84, 4539795), (90, 4237142), (91, 4190580), (93, 4100460), (105, 3631836), (117, 3259340), (124, 3075345), (126, 3026530), (130, 2933406), (140, 2723877), (155, 2460276), (156, 2444505), (180, 2118571), (182, 2095290), (186, 2050230), (195, 1955604), (210, 1815918), (217, 1757340), (234, 1629670), (252, 1513265), (260, 1466703), (273, 1396860), (279, 1366820), (310, 1230138), (315, 1210612), (364, 1047645), (372, 1025115), (390, 977802), (403, 946260), (420, 907959), (434, 878670), (455, 838116), (465, 820092), (468, 814835), (546, 698430), (558, 683410), (585, 651868), (620, 615069), (630, 605306), (651, 585780), (751, 507780), (780, 488901), (806, 473130), (819, 465620), (868, 439335), (910, 419058), (930, 410046), (1085, 351468), (1092, 349215), (1116, 341705), (1170, 325934), (1209, 315420), (1260, 302653), (1302, 292890), (1365, 279372), (1395, 273364), (1502, 253890), (1612, 236565), (1638, 232810), (1820, 209529), (1860, 205023), (1953, 195260), (2015, 189252), (2170, 175734), (2253, 169260), (2340, 162967), (2418, 157710), (2604, 146445), (2730, 139686), (2790, 136682), (2821, 135180), (3004, 126945), (3255, 117156), (3276, 116405), (3627, 105140), (3755, 101556), (3906, 97630), (4030, 94626), (4095, 93124), (4340, 87867), (4506, 84630), (4836, 78855), (5257, 72540), (5460, 69843), (5580, 68341), (5642, 67590), (6045, 63084), (6510, 58578), (6759, 56420), (7254, 52570), (7510, 50778), (7812, 48815), (8060, 47313), (8190, 46562), (8463, 45060), (9012, 42315), (9763, 39060), (9765, 39052), (10514, 36270), (11265, 33852), (11284, 33795), (12090, 31542), (13020, 29289), (13518, 28210), (14105, 27036), (14508, 26285), (15020, 25389), (15771, 24180), (16380, 23281), (16926, 22530), (18135, 21028), (19526, 19530)]

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