18136760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11059}}^1$

素因数の和:11111

約数の個数: 32

約数和(自身を含む): 41806800

約数和(自身を除く): 23670040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11059, 22118, 44236, 55295, 88472, 110590, 221180, 442360, 453419, 906838, 1813676, 2267095, 3627352, 4534190, 9068380, 18136760]

約数ペア:

[(1, 18136760), (2, 9068380), (4, 4534190), (5, 3627352), (8, 2267095), (10, 1813676), (20, 906838), (40, 453419), (41, 442360), (82, 221180), (164, 110590), (205, 88472), (328, 55295), (410, 44236), (820, 22118), (1640, 11059)]