61665040

素因数分解:

$2^4\times 5^1\times {\mathrm{770813}}^1$

素因数の和:770826

約数の個数: 20

約数和(自身を含む): 143371404

約数和(自身を除く): 81706364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 770813, 1541626, 3083252, 3854065, 6166504, 7708130, 12333008, 15416260, 30832520, 61665040]

約数ペア:

[(1, 61665040), (2, 30832520), (4, 15416260), (5, 12333008), (8, 7708130), (10, 6166504), (16, 3854065), (20, 3083252), (40, 1541626), (80, 770813)]