19191900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:93

約数の個数: 288

約数和(自身を含む): 73884160

約数和(自身を除く): 54692260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 25, 26, 28, 30, 35, 37, 38, 39, 42, 50, 52, 57, 60, 65, 70, 74, 75, 76, 78, 84, 91, 95, 100, 105, 111, 114, 130, 133, 140, 148, 150, 156, 175, 182, 185, 190, 195, 210, 222, 228, 247, 259, 260, 266, 273, 285, 300, 325, 350, 364, 370, 380, 390, 399, 420, 444, 455, 475, 481, 494, 518, 525, 532, 546, 555, 570, 650, 665, 700, 703, 740, 741, 777, 780, 798, 910, 925, 950, 962, 975, 988, 1036, 1050, 1092, 1110, 1140, 1235, 1295, 1300, 1330, 1365, 1406, 1425, 1443, 1482, 1554, 1596, 1729, 1820, 1850, 1900, 1924, 1950, 1995, 2100, 2109, 2220, 2275, 2405, 2470, 2590, 2660, 2730, 2775, 2812, 2850, 2886, 2964, 3108, 3325, 3367, 3458, 3515, 3700, 3705, 3885, 3900, 3990, 4218, 4550, 4810, 4921, 4940, 5180, 5187, 5460, 5550, 5700, 5772, 6175, 6475, 6650, 6734, 6825, 6916, 7030, 7215, 7410, 7770, 7980, 8436, 8645, 9100, 9139, 9620, 9842, 9975, 10101, 10374, 10545, 11100, 12025, 12350, 12950, 13300, 13468, 13650, 14060, 14430, 14763, 14820, 15540, 16835, 17290, 17575, 18278, 18525, 19425, 19684, 19950, 20202, 20748, 21090, 24050, 24605, 24700, 25900, 25935, 27300, 27417, 28860, 29526, 33670, 34580, 35150, 36075, 36556, 37050, 38850, 39900, 40404, 42180, 43225, 45695, 48100, 49210, 50505, 51870, 52725, 54834, 59052, 63973, 67340, 70300, 72150, 73815, 74100, 77700, 84175, 86450, 91390, 98420, 101010, 103740, 105450, 109668, 123025, 127946, 129675, 137085, 144300, 147630, 168350, 172900, 182780, 191919, 202020, 210900, 228475, 246050, 252525, 255892, 259350, 274170, 295260, 319865, 336700, 369075, 383838, 456950, 492100, 505050, 518700, 548340, 639730, 685425, 738150, 767676, 913900, 959595, 1010100, 1279460, 1370850, 1476300, 1599325, 1919190, 2741700, 3198650, 3838380, 4797975, 6397300, 9595950, 19191900]

約数ペア:

[(1, 19191900), (2, 9595950), (3, 6397300), (4, 4797975), (5, 3838380), (6, 3198650), (7, 2741700), (10, 1919190), (12, 1599325), (13, 1476300), (14, 1370850), (15, 1279460), (19, 1010100), (20, 959595), (21, 913900), (25, 767676), (26, 738150), (28, 685425), (30, 639730), (35, 548340), (37, 518700), (38, 505050), (39, 492100), (42, 456950), (50, 383838), (52, 369075), (57, 336700), (60, 319865), (65, 295260), (70, 274170), (74, 259350), (75, 255892), (76, 252525), (78, 246050), (84, 228475), (91, 210900), (95, 202020), (100, 191919), (105, 182780), (111, 172900), (114, 168350), (130, 147630), (133, 144300), (140, 137085), (148, 129675), (150, 127946), (156, 123025), (175, 109668), (182, 105450), (185, 103740), (190, 101010), (195, 98420), (210, 91390), (222, 86450), (228, 84175), (247, 77700), (259, 74100), (260, 73815), (266, 72150), (273, 70300), (285, 67340), (300, 63973), (325, 59052), (350, 54834), (364, 52725), (370, 51870), (380, 50505), (390, 49210), (399, 48100), (420, 45695), (444, 43225), (455, 42180), (475, 40404), (481, 39900), (494, 38850), (518, 37050), (525, 36556), (532, 36075), (546, 35150), (555, 34580), (570, 33670), (650, 29526), (665, 28860), (700, 27417), (703, 27300), (740, 25935), (741, 25900), (777, 24700), (780, 24605), (798, 24050), (910, 21090), (925, 20748), (950, 20202), (962, 19950), (975, 19684), (988, 19425), (1036, 18525), (1050, 18278), (1092, 17575), (1110, 17290), (1140, 16835), (1235, 15540), (1295, 14820), (1300, 14763), (1330, 14430), (1365, 14060), (1406, 13650), (1425, 13468), (1443, 13300), (1482, 12950), (1554, 12350), (1596, 12025), (1729, 11100), (1820, 10545), (1850, 10374), (1900, 10101), (1924, 9975), (1950, 9842), (1995, 9620), (2100, 9139), (2109, 9100), (2220, 8645), (2275, 8436), (2405, 7980), (2470, 7770), (2590, 7410), (2660, 7215), (2730, 7030), (2775, 6916), (2812, 6825), (2850, 6734), (2886, 6650), (2964, 6475), (3108, 6175), (3325, 5772), (3367, 5700), (3458, 5550), (3515, 5460), (3700, 5187), (3705, 5180), (3885, 4940), (3900, 4921), (3990, 4810), (4218, 4550)]