81664910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{115021}}^1$

素因数の和:115099

約数の個数: 16

約数和(自身を含む): 149068512

約数和(自身を除く): 67403602

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 115021, 230042, 575105, 1150210, 8166491, 16332982, 40832455, 81664910]

約数ペア:

[(1, 81664910), (2, 40832455), (5, 16332982), (10, 8166491), (71, 1150210), (142, 575105), (355, 230042), (710, 115021)]