40129840

素因数分解:

$2^4\times 5^1\times {\mathrm{501623}}^1$

素因数の和:501636

約数の個数: 20

約数和(自身を含む): 93302064

約数和(自身を除く): 53172224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 501623, 1003246, 2006492, 2508115, 4012984, 5016230, 8025968, 10032460, 20064920, 40129840]

約数ペア:

[(1, 40129840), (2, 20064920), (4, 10032460), (5, 8025968), (8, 5016230), (10, 4012984), (16, 2508115), (20, 2006492), (40, 1003246), (80, 501623)]