19674080

素因数分解:

$2^5\times 5^1\times {\mathrm{122963}}^1$

素因数の和:122978

約数の個数: 24

約数和(自身を含む): 46480392

約数和(自身を除く): 26806312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122963, 245926, 491852, 614815, 983704, 1229630, 1967408, 2459260, 3934816, 4918520, 9837040, 19674080]

約数ペア:

[(1, 19674080), (2, 9837040), (4, 4918520), (5, 3934816), (8, 2459260), (10, 1967408), (16, 1229630), (20, 983704), (32, 614815), (40, 491852), (80, 245926), (160, 122963)]