19518520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69709}}^1$

素因数の和:69727

約数の個数: 32

約数和(自身を含む): 50191200

約数和(自身を除く): 30672680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69709, 139418, 278836, 348545, 487963, 557672, 697090, 975926, 1394180, 1951852, 2439815, 2788360, 3903704, 4879630, 9759260, 19518520]

約数ペア:

[(1, 19518520), (2, 9759260), (4, 4879630), (5, 3903704), (7, 2788360), (8, 2439815), (10, 1951852), (14, 1394180), (20, 975926), (28, 697090), (35, 557672), (40, 487963), (56, 348545), (70, 278836), (140, 139418), (280, 69709)]