40303240

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1567}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 90881280

約数和(自身を除く): 50578040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 1567, 2572, 3134, 3215, 5144, 6268, 6430, 7835, 12536, 12860, 15670, 25720, 31340, 62680, 1007581, 2015162, 4030324, 5037905, 8060648, 10075810, 20151620, 40303240]

約数ペア:

[(1, 40303240), (2, 20151620), (4, 10075810), (5, 8060648), (8, 5037905), (10, 4030324), (20, 2015162), (40, 1007581), (643, 62680), (1286, 31340), (1567, 25720), (2572, 15670), (3134, 12860), (3215, 12536), (5144, 7835), (6268, 6430)]