18829475

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:852

約数の個数: 36

約数和(自身を含む): 28625400

約数和(自身を除く): 9795925

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 809, 931, 1225, 3325, 4045, 4655, 5663, 15371, 20225, 23275, 28315, 39641, 76855, 107597, 141575, 198205, 384275, 537985, 753179, 991025, 2689925, 3765895, 18829475]

約数ペア:

[(1, 18829475), (5, 3765895), (7, 2689925), (19, 991025), (25, 753179), (35, 537985), (49, 384275), (95, 198205), (133, 141575), (175, 107597), (245, 76855), (475, 39641), (665, 28315), (809, 23275), (931, 20225), (1225, 15371), (3325, 5663), (4045, 4655)]