138439960

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{58661}}^1$

素因数の和:58731

約数の個数: 32

約数和(自身を含む): 316774800

約数和(自身を除く): 178334840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 58661, 117322, 234644, 293305, 469288, 586610, 1173220, 2346440, 3460999, 6921998, 13843996, 17304995, 27687992, 34609990, 69219980, 138439960]

約数ペア:

[(1, 138439960), (2, 69219980), (4, 34609990), (5, 27687992), (8, 17304995), (10, 13843996), (20, 6921998), (40, 3460999), (59, 2346440), (118, 1173220), (236, 586610), (295, 469288), (472, 293305), (590, 234644), (1180, 117322), (2360, 58661)]