488377720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{393853}}^1$

素因数の和:393895

約数の個数: 32

約数和(自身を含む): 1134299520

約数和(自身を除く): 645921800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 393853, 787706, 1575412, 1969265, 3150824, 3938530, 7877060, 12209443, 15754120, 24418886, 48837772, 61047215, 97675544, 122094430, 244188860, 488377720]

約数ペア:

[(1, 488377720), (2, 244188860), (4, 122094430), (5, 97675544), (8, 61047215), (10, 48837772), (20, 24418886), (31, 15754120), (40, 12209443), (62, 7877060), (124, 3938530), (155, 3150824), (248, 1969265), (310, 1575412), (620, 787706), (1240, 393853)]