128556566

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 206309376

約数和(自身を除く): 77752810

約数列:

[1, 2, 31, 41, 62, 82, 103, 206, 491, 982, 1271, 2542, 3193, 4223, 6386, 8446, 15221, 20131, 30442, 40262, 50573, 101146, 130913, 261826, 624061, 1248122, 1567763, 2073493, 3135526, 4146986, 64278283, 128556566]

約数ペア:

[(1, 128556566), (2, 64278283), (31, 4146986), (41, 3135526), (62, 2073493), (82, 1567763), (103, 1248122), (206, 624061), (491, 261826), (982, 130913), (1271, 101146), (2542, 50573), (3193, 40262), (4223, 30442), (6386, 20131), (8446, 15221)]