90885040

素因数分解:

$2^4\times 5^1\times {\mathrm{1136063}}^1$

素因数の和:1136076

約数の個数: 20

約数和(自身を含む): 211307904

約数和(自身を除く): 120422864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1136063, 2272126, 4544252, 5680315, 9088504, 11360630, 18177008, 22721260, 45442520, 90885040]

約数ペア:

[(1, 90885040), (2, 45442520), (4, 22721260), (5, 18177008), (8, 11360630), (10, 9088504), (16, 5680315), (20, 4544252), (40, 2272126), (80, 1136063)]