139179640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{26561}}^1$

素因数の和:26703

約数の個数: 32

約数和(自身を含む): 315556560

約数和(自身を除く): 176376920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 26561, 53122, 106244, 132805, 212488, 265610, 531220, 1062440, 3479491, 6958982, 13917964, 17397455, 27835928, 34794910, 69589820, 139179640]

約数ペア:

[(1, 139179640), (2, 69589820), (4, 34794910), (5, 27835928), (8, 17397455), (10, 13917964), (20, 6958982), (40, 3479491), (131, 1062440), (262, 531220), (524, 265610), (655, 212488), (1048, 132805), (1310, 106244), (2620, 53122), (5240, 26561)]