64974790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:984

約数の個数: 32

約数和(自身を含む): 121500000

約数和(自身を除く): 56525210

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 449, 499, 898, 998, 2245, 2495, 4490, 4990, 13021, 14471, 26042, 28942, 65105, 72355, 130210, 144710, 224051, 448102, 1120255, 2240510, 6497479, 12994958, 32487395, 64974790]

約数ペア:

[(1, 64974790), (2, 32487395), (5, 12994958), (10, 6497479), (29, 2240510), (58, 1120255), (145, 448102), (290, 224051), (449, 144710), (499, 130210), (898, 72355), (998, 65105), (2245, 28942), (2495, 26042), (4490, 14471), (4990, 13021)]