4880540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 11902464

約数和(自身を除く): 7021924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 491, 497, 710, 982, 994, 1420, 1964, 1988, 2455, 2485, 3437, 4910, 4970, 6874, 9820, 9940, 13748, 17185, 34370, 34861, 68740, 69722, 139444, 174305, 244027, 348610, 488054, 697220, 976108, 1220135, 2440270, 4880540]

約数ペア:

[(1, 4880540), (2, 2440270), (4, 1220135), (5, 976108), (7, 697220), (10, 488054), (14, 348610), (20, 244027), (28, 174305), (35, 139444), (70, 69722), (71, 68740), (140, 34861), (142, 34370), (284, 17185), (355, 13748), (491, 9940), (497, 9820), (710, 6874), (982, 4970), (994, 4910), (1420, 3437), (1964, 2485), (1988, 2455)]