98998580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 211680000

約数和(自身を除く): 112681420

約数列:

[1, 2, 4, 5, 10, 20, 139, 149, 239, 278, 298, 478, 556, 596, 695, 745, 956, 1195, 1390, 1490, 2390, 2780, 2980, 4780, 20711, 33221, 35611, 41422, 66442, 71222, 82844, 103555, 132884, 142444, 166105, 178055, 207110, 332210, 356110, 414220, 664420, 712220, 4949929, 9899858, 19799716, 24749645, 49499290, 98998580]

約数ペア:

[(1, 98998580), (2, 49499290), (4, 24749645), (5, 19799716), (10, 9899858), (20, 4949929), (139, 712220), (149, 664420), (239, 414220), (278, 356110), (298, 332210), (478, 207110), (556, 178055), (596, 166105), (695, 142444), (745, 132884), (956, 103555), (1195, 82844), (1390, 71222), (1490, 66442), (2390, 41422), (2780, 35611), (2980, 33221), (4780, 20711)]