20640050

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{8783}}^1$

素因数の和:8842

約数の個数: 24

約数和(自身を含む): 39211776

約数和(自身を除く): 18571726

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 235, 470, 1175, 2350, 8783, 17566, 43915, 87830, 219575, 412801, 439150, 825602, 2064005, 4128010, 10320025, 20640050]

約数ペア:

[(1, 20640050), (2, 10320025), (5, 4128010), (10, 2064005), (25, 825602), (47, 439150), (50, 412801), (94, 219575), (235, 87830), (470, 43915), (1175, 17566), (2350, 8783)]