128488160

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7951}}^1$

素因数の和:8067

約数の個数: 48

約数和(自身を含む): 306597312

約数和(自身を除く): 178109152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 7951, 8080, 15902, 16160, 31804, 39755, 63608, 79510, 127216, 159020, 254432, 318040, 636080, 803051, 1272160, 1606102, 3212204, 4015255, 6424408, 8030510, 12848816, 16061020, 25697632, 32122040, 64244080, 128488160]

約数ペア:

[(1, 128488160), (2, 64244080), (4, 32122040), (5, 25697632), (8, 16061020), (10, 12848816), (16, 8030510), (20, 6424408), (32, 4015255), (40, 3212204), (80, 1606102), (101, 1272160), (160, 803051), (202, 636080), (404, 318040), (505, 254432), (808, 159020), (1010, 127216), (1616, 79510), (2020, 63608), (3232, 39755), (4040, 31804), (7951, 16160), (8080, 15902)]