312960040

素因数分解:

$2^3\times 5^1\times {\mathrm{7824001}}^1$

素因数の和:7824012

約数の個数: 16

約数和(自身を含む): 704160180

約数和(自身を除く): 391200140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7824001, 15648002, 31296004, 39120005, 62592008, 78240010, 156480020, 312960040]

約数ペア:

[(1, 312960040), (2, 156480020), (4, 78240010), (5, 62592008), (8, 39120005), (10, 31296004), (20, 15648002), (40, 7824001)]