639956715

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1129}}^1$

素因数の和:1244

約数の個数: 64

約数和(自身を含む): 1124720640

約数和(自身を除く): 484763925

約数列:

[1, 3, 5, 15, 23, 31, 53, 69, 93, 115, 155, 159, 265, 345, 465, 713, 795, 1129, 1219, 1643, 2139, 3387, 3565, 3657, 4929, 5645, 6095, 8215, 10695, 16935, 18285, 24645, 25967, 34999, 37789, 59837, 77901, 104997, 113367, 129835, 174995, 179511, 188945, 299185, 389505, 524985, 566835, 804977, 897555, 1376251, 1854947, 2414931, 4024885, 4128753, 5564841, 6881255, 9274735, 12074655, 20643765, 27824205, 42663781, 127991343, 213318905, 639956715]

約数ペア:

[(1, 639956715), (3, 213318905), (5, 127991343), (15, 42663781), (23, 27824205), (31, 20643765), (53, 12074655), (69, 9274735), (93, 6881255), (115, 5564841), (155, 4128753), (159, 4024885), (265, 2414931), (345, 1854947), (465, 1376251), (713, 897555), (795, 804977), (1129, 566835), (1219, 524985), (1643, 389505), (2139, 299185), (3387, 188945), (3565, 179511), (3657, 174995), (4929, 129835), (5645, 113367), (6095, 104997), (8215, 77901), (10695, 59837), (16935, 37789), (18285, 34999), (24645, 25967)]