8916220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 19692288

約数和(自身を除く): 10776068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 197, 292, 310, 365, 394, 620, 730, 788, 985, 1460, 1970, 2263, 3940, 4526, 6107, 9052, 11315, 12214, 14381, 22630, 24428, 28762, 30535, 45260, 57524, 61070, 71905, 122140, 143810, 287620, 445811, 891622, 1783244, 2229055, 4458110, 8916220]

約数ペア:

[(1, 8916220), (2, 4458110), (4, 2229055), (5, 1783244), (10, 891622), (20, 445811), (31, 287620), (62, 143810), (73, 122140), (124, 71905), (146, 61070), (155, 57524), (197, 45260), (292, 30535), (310, 28762), (365, 24428), (394, 22630), (620, 14381), (730, 12214), (788, 11315), (985, 9052), (1460, 6107), (1970, 4526), (2263, 3940)]