20026920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1063}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 60520320

約数和(自身を除く): 40493400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1063, 1256, 1570, 1884, 2126, 2355, 3140, 3189, 3768, 4252, 4710, 5315, 6280, 6378, 8504, 9420, 10630, 12756, 15945, 18840, 21260, 25512, 31890, 42520, 63780, 127560, 166891, 333782, 500673, 667564, 834455, 1001346, 1335128, 1668910, 2002692, 2503365, 3337820, 4005384, 5006730, 6675640, 10013460, 20026920]

約数ペア:

[(1, 20026920), (2, 10013460), (3, 6675640), (4, 5006730), (5, 4005384), (6, 3337820), (8, 2503365), (10, 2002692), (12, 1668910), (15, 1335128), (20, 1001346), (24, 834455), (30, 667564), (40, 500673), (60, 333782), (120, 166891), (157, 127560), (314, 63780), (471, 42520), (628, 31890), (785, 25512), (942, 21260), (1063, 18840), (1256, 15945), (1570, 12756), (1884, 10630), (2126, 9420), (2355, 8504), (3140, 6378), (3189, 6280), (3768, 5315), (4252, 4710)]