20124895

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 9527585

約数列:

[1, 5, 7, 19, 35, 53, 95, 133, 265, 371, 571, 665, 1007, 1855, 2855, 3997, 5035, 7049, 10849, 19985, 30263, 35245, 54245, 75943, 151315, 211841, 379715, 574997, 1059205, 2874985, 4024979, 20124895]

約数ペア:

[(1, 20124895), (5, 4024979), (7, 2874985), (19, 1059205), (35, 574997), (53, 379715), (95, 211841), (133, 151315), (265, 75943), (371, 54245), (571, 35245), (665, 30263), (1007, 19985), (1855, 10849), (2855, 7049), (3997, 5035)]