181140880

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31891}}^1$

素因数の和:31975

約数の個数: 40

約数和(自身を含む): 427097664

約数和(自身を除く): 245956784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 31891, 63782, 127564, 159455, 255128, 318910, 510256, 637820, 1275640, 2264261, 2551280, 4528522, 9057044, 11321305, 18114088, 22642610, 36228176, 45285220, 90570440, 181140880]

約数ペア:

[(1, 181140880), (2, 90570440), (4, 45285220), (5, 36228176), (8, 22642610), (10, 18114088), (16, 11321305), (20, 9057044), (40, 4528522), (71, 2551280), (80, 2264261), (142, 1275640), (284, 637820), (355, 510256), (568, 318910), (710, 255128), (1136, 159455), (1420, 127564), (2840, 63782), (5680, 31891)]