137931640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2405

約数の個数: 128

約数和(自身を含む): 407462400

約数和(自身を除く): 269530760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 532, 616, 665, 760, 770, 836, 1045, 1064, 1330, 1463, 1540, 1672, 2090, 2357, 2660, 2926, 3080, 4180, 4714, 5320, 5852, 7315, 8360, 9428, 11704, 11785, 14630, 16499, 18856, 23570, 25927, 29260, 32998, 44783, 47140, 51854, 58520, 65996, 82495, 89566, 94280, 103708, 129635, 131992, 164990, 179132, 181489, 207416, 223915, 259270, 313481, 329980, 358264, 362978, 447830, 492613, 518540, 626962, 659960, 725956, 895660, 907445, 985226, 1037080, 1253924, 1451912, 1567405, 1791320, 1814890, 1970452, 2463065, 2507848, 3134810, 3448291, 3629780, 3940904, 4926130, 6269620, 6896582, 7259560, 9852260, 12539240, 13793164, 17241455, 19704520, 27586328, 34482910, 68965820, 137931640]

約数ペア:

[(1, 137931640), (2, 68965820), (4, 34482910), (5, 27586328), (7, 19704520), (8, 17241455), (10, 13793164), (11, 12539240), (14, 9852260), (19, 7259560), (20, 6896582), (22, 6269620), (28, 4926130), (35, 3940904), (38, 3629780), (40, 3448291), (44, 3134810), (55, 2507848), (56, 2463065), (70, 1970452), (76, 1814890), (77, 1791320), (88, 1567405), (95, 1451912), (110, 1253924), (133, 1037080), (140, 985226), (152, 907445), (154, 895660), (190, 725956), (209, 659960), (220, 626962), (266, 518540), (280, 492613), (308, 447830), (380, 362978), (385, 358264), (418, 329980), (440, 313481), (532, 259270), (616, 223915), (665, 207416), (760, 181489), (770, 179132), (836, 164990), (1045, 131992), (1064, 129635), (1330, 103708), (1463, 94280), (1540, 89566), (1672, 82495), (2090, 65996), (2357, 58520), (2660, 51854), (2926, 47140), (3080, 44783), (4180, 32998), (4714, 29260), (5320, 25927), (5852, 23570), (7315, 18856), (8360, 16499), (9428, 14630), (11704, 11785)]