71907640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{256813}}^1$

素因数の和:256831

約数の個数: 32

約数和(自身を含む): 184906080

約数和(自身を除く): 112998440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 256813, 513626, 1027252, 1284065, 1797691, 2054504, 2568130, 3595382, 5136260, 7190764, 8988455, 10272520, 14381528, 17976910, 35953820, 71907640]

約数ペア:

[(1, 71907640), (2, 35953820), (4, 17976910), (5, 14381528), (7, 10272520), (8, 8988455), (10, 7190764), (14, 5136260), (20, 3595382), (28, 2568130), (35, 2054504), (40, 1797691), (56, 1284065), (70, 1027252), (140, 513626), (280, 256813)]