19279640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2957}}^1$

素因数の和:3131

約数の個数: 32

約数和(自身を含む): 43660080

約数和(自身を除く): 24380440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2957, 3260, 5914, 6520, 11828, 14785, 23656, 29570, 59140, 118280, 481991, 963982, 1927964, 2409955, 3855928, 4819910, 9639820, 19279640]

約数ペア:

[(1, 19279640), (2, 9639820), (4, 4819910), (5, 3855928), (8, 2409955), (10, 1927964), (20, 963982), (40, 481991), (163, 118280), (326, 59140), (652, 29570), (815, 23656), (1304, 14785), (1630, 11828), (2957, 6520), (3260, 5914)]