19519240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37537}}^1$

素因数の和:37561

約数の個数: 32

約数和(自身を含む): 47297880

約数和(自身を除く): 27778640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37537, 75074, 150148, 187685, 300296, 375370, 487981, 750740, 975962, 1501480, 1951924, 2439905, 3903848, 4879810, 9759620, 19519240]

約数ペア:

[(1, 19519240), (2, 9759620), (4, 4879810), (5, 3903848), (8, 2439905), (10, 1951924), (13, 1501480), (20, 975962), (26, 750740), (40, 487981), (52, 375370), (65, 300296), (104, 187685), (130, 150148), (260, 75074), (520, 37537)]