639958278

素因数分解:

$2^1\times 3^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1\times {\mathrm{3709}}^1$

素因数の和:4056

約数の個数: 32

約数和(自身を含む): 1295532000

約数和(自身を除く): 655573722

約数列:

[1, 2, 3, 6, 149, 193, 298, 386, 447, 579, 894, 1158, 3709, 7418, 11127, 22254, 28757, 57514, 86271, 172542, 552641, 715837, 1105282, 1431674, 1657923, 2147511, 3315846, 4295022, 106659713, 213319426, 319979139, 639958278]

約数ペア:

[(1, 639958278), (2, 319979139), (3, 213319426), (6, 106659713), (149, 4295022), (193, 3315846), (298, 2147511), (386, 1657923), (447, 1431674), (579, 1105282), (894, 715837), (1158, 552641), (3709, 172542), (7418, 86271), (11127, 57514), (22254, 28757)]