67537640

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4253}}^1$

素因数の和:4661

約数の個数: 32

約数和(自身を含む): 152378280

約数和(自身を除く): 84840640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4253, 7940, 8506, 15880, 17012, 21265, 34024, 42530, 85060, 170120, 1688441, 3376882, 6753764, 8442205, 13507528, 16884410, 33768820, 67537640]

約数ペア:

[(1, 67537640), (2, 33768820), (4, 16884410), (5, 13507528), (8, 8442205), (10, 6753764), (20, 3376882), (40, 1688441), (397, 170120), (794, 85060), (1588, 42530), (1985, 34024), (3176, 21265), (3970, 17012), (4253, 15880), (7940, 8506)]