1555136440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4457}}^1$

素因数の和:4553

約数の個数: 128

約数和(自身を含む): 4179107520

約数和(自身を除く): 2623971080

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 61, 65, 88, 104, 110, 122, 130, 143, 220, 244, 260, 286, 305, 440, 488, 520, 572, 610, 671, 715, 793, 1144, 1220, 1342, 1430, 1586, 2440, 2684, 2860, 3172, 3355, 3965, 4457, 5368, 5720, 6344, 6710, 7930, 8723, 8914, 13420, 15860, 17446, 17828, 22285, 26840, 31720, 34892, 35656, 43615, 44570, 49027, 57941, 69784, 87230, 89140, 98054, 115882, 174460, 178280, 196108, 231764, 245135, 271877, 289705, 348920, 392216, 463528, 490270, 543754, 579410, 637351, 980540, 1087508, 1158820, 1274702, 1359385, 1961080, 2175016, 2317640, 2549404, 2718770, 2990647, 3186755, 3534401, 5098808, 5437540, 5981294, 6373510, 7068802, 10875080, 11962588, 12747020, 14137604, 14953235, 17672005, 23925176, 25494040, 28275208, 29906470, 35344010, 38878411, 59812940, 70688020, 77756822, 119625880, 141376040, 155513644, 194392055, 311027288, 388784110, 777568220, 1555136440]

約数ペア:

[(1, 1555136440), (2, 777568220), (4, 388784110), (5, 311027288), (8, 194392055), (10, 155513644), (11, 141376040), (13, 119625880), (20, 77756822), (22, 70688020), (26, 59812940), (40, 38878411), (44, 35344010), (52, 29906470), (55, 28275208), (61, 25494040), (65, 23925176), (88, 17672005), (104, 14953235), (110, 14137604), (122, 12747020), (130, 11962588), (143, 10875080), (220, 7068802), (244, 6373510), (260, 5981294), (286, 5437540), (305, 5098808), (440, 3534401), (488, 3186755), (520, 2990647), (572, 2718770), (610, 2549404), (671, 2317640), (715, 2175016), (793, 1961080), (1144, 1359385), (1220, 1274702), (1342, 1158820), (1430, 1087508), (1586, 980540), (2440, 637351), (2684, 579410), (2860, 543754), (3172, 490270), (3355, 463528), (3965, 392216), (4457, 348920), (5368, 289705), (5720, 271877), (6344, 245135), (6710, 231764), (7930, 196108), (8723, 178280), (8914, 174460), (13420, 115882), (15860, 98054), (17446, 89140), (17828, 87230), (22285, 69784), (26840, 57941), (31720, 49027), (34892, 44570), (35656, 43615)]