71635640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21577}}^1$

素因数の和:21671

約数の個数: 32

約数和(自身を含む): 163129680

約数和(自身を除く): 91494040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 21577, 43154, 86308, 107885, 172616, 215770, 431540, 863080, 1790891, 3581782, 7163564, 8954455, 14327128, 17908910, 35817820, 71635640]

約数ペア:

[(1, 71635640), (2, 35817820), (4, 17908910), (5, 14327128), (8, 8954455), (10, 7163564), (20, 3581782), (40, 1790891), (83, 863080), (166, 431540), (332, 215770), (415, 172616), (664, 107885), (830, 86308), (1660, 43154), (3320, 21577)]