8841680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1399}}^1$

素因数の和:1491

約数の個数: 40

約数和(自身を含む): 20832000

約数和(自身を除く): 11990320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1399, 1580, 2798, 3160, 5596, 6320, 6995, 11192, 13990, 22384, 27980, 55960, 110521, 111920, 221042, 442084, 552605, 884168, 1105210, 1768336, 2210420, 4420840, 8841680]

約数ペア:

[(1, 8841680), (2, 4420840), (4, 2210420), (5, 1768336), (8, 1105210), (10, 884168), (16, 552605), (20, 442084), (40, 221042), (79, 111920), (80, 110521), (158, 55960), (316, 27980), (395, 22384), (632, 13990), (790, 11192), (1264, 6995), (1399, 6320), (1580, 5596), (2798, 3160)]