42758440

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1637}}^1$

素因数の和:2301

約数の個数: 32

約数和(自身を含む): 96412680

約数和(自身を除く): 53654240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 1637, 2612, 3265, 3274, 5224, 6530, 6548, 8185, 13060, 13096, 16370, 26120, 32740, 65480, 1068961, 2137922, 4275844, 5344805, 8551688, 10689610, 21379220, 42758440]

約数ペア:

[(1, 42758440), (2, 21379220), (4, 10689610), (5, 8551688), (8, 5344805), (10, 4275844), (20, 2137922), (40, 1068961), (653, 65480), (1306, 32740), (1637, 26120), (2612, 16370), (3265, 13096), (3274, 13060), (5224, 8185), (6530, 6548)]