1561854920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1\times {\mathrm{1627}}^1$

素因数の和:1974

約数の個数: 64

約数和(自身を含む): 3565710720

約数和(自身を除く): 2003855800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 233, 412, 466, 515, 824, 932, 1030, 1165, 1627, 1864, 2060, 2330, 3254, 4120, 4660, 6508, 8135, 9320, 13016, 16270, 23999, 32540, 47998, 65080, 95996, 119995, 167581, 191992, 239990, 335162, 379091, 479980, 670324, 758182, 837905, 959960, 1340648, 1516364, 1675810, 1895455, 3032728, 3351620, 3790910, 6703240, 7581820, 15163640, 39046373, 78092746, 156185492, 195231865, 312370984, 390463730, 780927460, 1561854920]

約数ペア:

[(1, 1561854920), (2, 780927460), (4, 390463730), (5, 312370984), (8, 195231865), (10, 156185492), (20, 78092746), (40, 39046373), (103, 15163640), (206, 7581820), (233, 6703240), (412, 3790910), (466, 3351620), (515, 3032728), (824, 1895455), (932, 1675810), (1030, 1516364), (1165, 1340648), (1627, 959960), (1864, 837905), (2060, 758182), (2330, 670324), (3254, 479980), (4120, 379091), (4660, 335162), (6508, 239990), (8135, 191992), (9320, 167581), (13016, 119995), (16270, 95996), (23999, 65080), (32540, 47998)]