83708440

素因数分解:

$2^3\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{1621}}^1$

素因数の和:2923

約数の個数: 32

約数和(自身を含む): 188606160

約数和(自身を除く): 104897720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1291, 1621, 2582, 3242, 5164, 6455, 6484, 8105, 10328, 12910, 12968, 16210, 25820, 32420, 51640, 64840, 2092711, 4185422, 8370844, 10463555, 16741688, 20927110, 41854220, 83708440]

約数ペア:

[(1, 83708440), (2, 41854220), (4, 20927110), (5, 16741688), (8, 10463555), (10, 8370844), (20, 4185422), (40, 2092711), (1291, 64840), (1621, 51640), (2582, 32420), (3242, 25820), (5164, 16210), (6455, 12968), (6484, 12910), (8105, 10328)]