278126940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:441

約数の個数: 288

約数和(自身を含む): 1029611520

約数和(自身を除く): 751484580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 49, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 98, 105, 114, 130, 133, 140, 147, 156, 182, 190, 195, 196, 210, 228, 245, 247, 260, 266, 273, 285, 294, 364, 380, 383, 390, 399, 420, 455, 490, 494, 532, 546, 570, 588, 637, 665, 735, 741, 766, 780, 798, 910, 931, 980, 988, 1092, 1140, 1149, 1235, 1274, 1330, 1365, 1470, 1482, 1532, 1596, 1729, 1820, 1862, 1911, 1915, 1995, 2298, 2470, 2548, 2660, 2681, 2730, 2793, 2940, 2964, 3185, 3458, 3705, 3724, 3822, 3830, 3990, 4596, 4655, 4940, 4979, 5187, 5362, 5460, 5586, 5745, 6370, 6916, 7277, 7410, 7644, 7660, 7980, 8043, 8645, 9310, 9555, 9958, 10374, 10724, 11172, 11490, 12103, 12740, 13405, 13965, 14554, 14820, 14937, 16086, 17290, 18620, 18767, 19110, 19916, 20748, 21831, 22980, 24206, 24895, 25935, 26810, 27930, 29108, 29874, 32172, 34580, 34853, 36309, 36385, 37534, 38220, 40215, 43662, 48412, 49790, 50939, 51870, 53620, 55860, 56301, 59748, 60515, 69706, 72618, 72770, 74685, 75068, 80430, 87324, 93835, 94601, 99580, 101878, 103740, 104559, 109155, 112602, 121030, 139412, 145236, 145540, 149370, 152817, 160860, 174265, 181545, 187670, 189202, 203756, 209118, 218310, 225204, 242060, 243971, 254695, 281505, 283803, 298740, 305634, 348530, 356573, 363090, 375340, 378404, 418236, 436620, 473005, 487942, 509390, 522795, 563010, 567606, 611268, 662207, 697060, 713146, 726180, 731913, 764085, 946010, 975884, 1018780, 1045590, 1069719, 1126020, 1135212, 1219855, 1324414, 1419015, 1426292, 1463826, 1528170, 1782865, 1892020, 1986621, 2091180, 2139438, 2439710, 2648828, 2838030, 2927652, 3056340, 3311035, 3565730, 3659565, 3973242, 4278876, 4635449, 4879420, 5348595, 5676060, 6622070, 7131460, 7319130, 7946484, 9270898, 9933105, 10697190, 13244140, 13906347, 14638260, 18541796, 19866210, 21394380, 23177245, 27812694, 39732420, 46354490, 55625388, 69531735, 92708980, 139063470, 278126940]

約数ペア:

[(1, 278126940), (2, 139063470), (3, 92708980), (4, 69531735), (5, 55625388), (6, 46354490), (7, 39732420), (10, 27812694), (12, 23177245), (13, 21394380), (14, 19866210), (15, 18541796), (19, 14638260), (20, 13906347), (21, 13244140), (26, 10697190), (28, 9933105), (30, 9270898), (35, 7946484), (38, 7319130), (39, 7131460), (42, 6622070), (49, 5676060), (52, 5348595), (57, 4879420), (60, 4635449), (65, 4278876), (70, 3973242), (76, 3659565), (78, 3565730), (84, 3311035), (91, 3056340), (95, 2927652), (98, 2838030), (105, 2648828), (114, 2439710), (130, 2139438), (133, 2091180), (140, 1986621), (147, 1892020), (156, 1782865), (182, 1528170), (190, 1463826), (195, 1426292), (196, 1419015), (210, 1324414), (228, 1219855), (245, 1135212), (247, 1126020), (260, 1069719), (266, 1045590), (273, 1018780), (285, 975884), (294, 946010), (364, 764085), (380, 731913), (383, 726180), (390, 713146), (399, 697060), (420, 662207), (455, 611268), (490, 567606), (494, 563010), (532, 522795), (546, 509390), (570, 487942), (588, 473005), (637, 436620), (665, 418236), (735, 378404), (741, 375340), (766, 363090), (780, 356573), (798, 348530), (910, 305634), (931, 298740), (980, 283803), (988, 281505), (1092, 254695), (1140, 243971), (1149, 242060), (1235, 225204), (1274, 218310), (1330, 209118), (1365, 203756), (1470, 189202), (1482, 187670), (1532, 181545), (1596, 174265), (1729, 160860), (1820, 152817), (1862, 149370), (1911, 145540), (1915, 145236), (1995, 139412), (2298, 121030), (2470, 112602), (2548, 109155), (2660, 104559), (2681, 103740), (2730, 101878), (2793, 99580), (2940, 94601), (2964, 93835), (3185, 87324), (3458, 80430), (3705, 75068), (3724, 74685), (3822, 72770), (3830, 72618), (3990, 69706), (4596, 60515), (4655, 59748), (4940, 56301), (4979, 55860), (5187, 53620), (5362, 51870), (5460, 50939), (5586, 49790), (5745, 48412), (6370, 43662), (6916, 40215), (7277, 38220), (7410, 37534), (7644, 36385), (7660, 36309), (7980, 34853), (8043, 34580), (8645, 32172), (9310, 29874), (9555, 29108), (9958, 27930), (10374, 26810), (10724, 25935), (11172, 24895), (11490, 24206), (12103, 22980), (12740, 21831), (13405, 20748), (13965, 19916), (14554, 19110), (14820, 18767), (14937, 18620), (16086, 17290)]