840720163970

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{62417}}^1$

素因数の和:62867

約数の個数: 64

約数和(自身を含む): 1564808274432

約数和(自身を除く): 724088110462

約数列:

[1, 2, 5, 10, 61, 71, 122, 142, 305, 311, 355, 610, 622, 710, 1555, 3110, 4331, 8662, 18971, 21655, 22081, 37942, 43310, 44162, 62417, 94855, 110405, 124834, 189710, 220810, 312085, 624170, 1346941, 2693882, 3807437, 4431607, 6734705, 7614874, 8863214, 13469410, 19037185, 19411687, 22158035, 38074370, 38823374, 44316070, 97058435, 194116870, 270328027, 540656054, 1184112907, 1351640135, 1378229777, 2368225814, 2703280270, 2756459554, 5920564535, 6891148885, 11841129070, 13782297770, 84072016397, 168144032794, 420360081985, 840720163970]

約数ペア:

[(1, 840720163970), (2, 420360081985), (5, 168144032794), (10, 84072016397), (61, 13782297770), (71, 11841129070), (122, 6891148885), (142, 5920564535), (305, 2756459554), (311, 2703280270), (355, 2368225814), (610, 1378229777), (622, 1351640135), (710, 1184112907), (1555, 540656054), (3110, 270328027), (4331, 194116870), (8662, 97058435), (18971, 44316070), (21655, 38823374), (22081, 38074370), (37942, 22158035), (43310, 19411687), (44162, 19037185), (62417, 13469410), (94855, 8863214), (110405, 7614874), (124834, 6734705), (189710, 4431607), (220810, 3807437), (312085, 2693882), (624170, 1346941)]