77010820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 167989248

約数和(自身を除く): 90978428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 223, 310, 446, 557, 620, 892, 1114, 1115, 2228, 2230, 2785, 4460, 5570, 6913, 11140, 13826, 17267, 27652, 34534, 34565, 69068, 69130, 86335, 124211, 138260, 172670, 248422, 345340, 496844, 621055, 1242110, 2484220, 3850541, 7701082, 15402164, 19252705, 38505410, 77010820]

約数ペア:

[(1, 77010820), (2, 38505410), (4, 19252705), (5, 15402164), (10, 7701082), (20, 3850541), (31, 2484220), (62, 1242110), (124, 621055), (155, 496844), (223, 345340), (310, 248422), (446, 172670), (557, 138260), (620, 124211), (892, 86335), (1114, 69130), (1115, 69068), (2228, 34565), (2230, 34534), (2785, 27652), (4460, 17267), (5570, 13826), (6913, 11140)]