210007880

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{5407}}^1$

素因数の和:6389

約数の個数: 32

約数和(自身を含む): 473091840

約数和(自身を除く): 263083960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 3884, 4855, 5407, 7768, 9710, 10814, 19420, 21628, 27035, 38840, 43256, 54070, 108140, 216280, 5250197, 10500394, 21000788, 26250985, 42001576, 52501970, 105003940, 210007880]

約数ペア:

[(1, 210007880), (2, 105003940), (4, 52501970), (5, 42001576), (8, 26250985), (10, 21000788), (20, 10500394), (40, 5250197), (971, 216280), (1942, 108140), (3884, 54070), (4855, 43256), (5407, 38840), (7768, 27035), (9710, 21628), (10814, 19420)]