68959160

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2131}}^1$

素因数の和:2951

約数の個数: 32

約数和(自身を含む): 155422800

約数和(自身を除く): 86463640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2131, 3236, 4045, 4262, 6472, 8090, 8524, 10655, 16180, 17048, 21310, 32360, 42620, 85240, 1723979, 3447958, 6895916, 8619895, 13791832, 17239790, 34479580, 68959160]

約数ペア:

[(1, 68959160), (2, 34479580), (4, 17239790), (5, 13791832), (8, 8619895), (10, 6895916), (20, 3447958), (40, 1723979), (809, 85240), (1618, 42620), (2131, 32360), (3236, 21310), (4045, 17048), (4262, 16180), (6472, 10655), (8090, 8524)]