61770920

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{3583}}^1$

素因数の和:4025

約数の個数: 32

約数和(自身を含む): 139345920

約数和(自身を除く): 77575000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 3583, 4310, 7166, 8620, 14332, 17240, 17915, 28664, 35830, 71660, 143320, 1544273, 3088546, 6177092, 7721365, 12354184, 15442730, 30885460, 61770920]

約数ペア:

[(1, 61770920), (2, 30885460), (4, 15442730), (5, 12354184), (8, 7721365), (10, 6177092), (20, 3088546), (40, 1544273), (431, 143320), (862, 71660), (1724, 35830), (2155, 28664), (3448, 17915), (3583, 17240), (4310, 14332), (7166, 8620)]