7947440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2423}}^1$

素因数の和:2477

約数の個数: 40

約数和(自身を含む): 18936288

約数和(自身を除く): 10988848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2423, 3280, 4846, 9692, 12115, 19384, 24230, 38768, 48460, 96920, 99343, 193840, 198686, 397372, 496715, 794744, 993430, 1589488, 1986860, 3973720, 7947440]

約数ペア:

[(1, 7947440), (2, 3973720), (4, 1986860), (5, 1589488), (8, 993430), (10, 794744), (16, 496715), (20, 397372), (40, 198686), (41, 193840), (80, 99343), (82, 96920), (164, 48460), (205, 38768), (328, 24230), (410, 19384), (656, 12115), (820, 9692), (1640, 4846), (2423, 3280)]