1390452020

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1\times {\mathrm{1973}}^1$

素因数の和:2360

約数の個数: 48

約数和(自身を含む): 2952851328

約数和(自身を除く): 1562399308

約数列:

[1, 2, 4, 5, 10, 20, 167, 211, 334, 422, 668, 835, 844, 1055, 1670, 1973, 2110, 3340, 3946, 4220, 7892, 9865, 19730, 35237, 39460, 70474, 140948, 176185, 329491, 352370, 416303, 658982, 704740, 832606, 1317964, 1647455, 1665212, 2081515, 3294910, 4163030, 6589820, 8326060, 69522601, 139045202, 278090404, 347613005, 695226010, 1390452020]

約数ペア:

[(1, 1390452020), (2, 695226010), (4, 347613005), (5, 278090404), (10, 139045202), (20, 69522601), (167, 8326060), (211, 6589820), (334, 4163030), (422, 3294910), (668, 2081515), (835, 1665212), (844, 1647455), (1055, 1317964), (1670, 832606), (1973, 704740), (2110, 658982), (3340, 416303), (3946, 352370), (4220, 329491), (7892, 176185), (9865, 140948), (19730, 70474), (35237, 39460)]