28316360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 66242880

約数和(自身を除く): 37926520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 163, 172, 202, 215, 326, 344, 404, 430, 505, 652, 808, 815, 860, 1010, 1304, 1630, 1720, 2020, 3260, 4040, 4343, 6520, 7009, 8686, 14018, 16463, 17372, 21715, 28036, 32926, 34744, 35045, 43430, 56072, 65852, 70090, 82315, 86860, 131704, 140180, 164630, 173720, 280360, 329260, 658520, 707909, 1415818, 2831636, 3539545, 5663272, 7079090, 14158180, 28316360]

約数ペア:

[(1, 28316360), (2, 14158180), (4, 7079090), (5, 5663272), (8, 3539545), (10, 2831636), (20, 1415818), (40, 707909), (43, 658520), (86, 329260), (101, 280360), (163, 173720), (172, 164630), (202, 140180), (215, 131704), (326, 86860), (344, 82315), (404, 70090), (430, 65852), (505, 56072), (652, 43430), (808, 35045), (815, 34744), (860, 32926), (1010, 28036), (1304, 21715), (1630, 17372), (1720, 16463), (2020, 14018), (3260, 8686), (4040, 7009), (4343, 6520)]