87747640

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{7487}}^1$

素因数の和:7791

約数の個数: 32

約数和(自身を含む): 198132480

約数和(自身を除く): 110384840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2930, 5860, 7487, 11720, 14974, 29948, 37435, 59896, 74870, 149740, 299480, 2193691, 4387382, 8774764, 10968455, 17549528, 21936910, 43873820, 87747640]

約数ペア:

[(1, 87747640), (2, 43873820), (4, 21936910), (5, 17549528), (8, 10968455), (10, 8774764), (20, 4387382), (40, 2193691), (293, 299480), (586, 149740), (1172, 74870), (1465, 59896), (2344, 37435), (2930, 29948), (5860, 14974), (7487, 11720)]