2101980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 6005664

約数和(自身を除く): 3903684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 661, 795, 1060, 1322, 1590, 1983, 2644, 3180, 3305, 3966, 6610, 7932, 9915, 13220, 19830, 35033, 39660, 70066, 105099, 140132, 175165, 210198, 350330, 420396, 525495, 700660, 1050990, 2101980]

約数ペア:

[(1, 2101980), (2, 1050990), (3, 700660), (4, 525495), (5, 420396), (6, 350330), (10, 210198), (12, 175165), (15, 140132), (20, 105099), (30, 70066), (53, 39660), (60, 35033), (106, 19830), (159, 13220), (212, 9915), (265, 7932), (318, 6610), (530, 3966), (636, 3305), (661, 3180), (795, 2644), (1060, 1983), (1322, 1590)]