168522440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{25847}}^1$

素因数の和:26021

約数の個数: 32

約数和(自身を含む): 381516480

約数和(自身を除く): 212994040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 25847, 51694, 103388, 129235, 206776, 258470, 516940, 1033880, 4213061, 8426122, 16852244, 21065305, 33704488, 42130610, 84261220, 168522440]

約数ペア:

[(1, 168522440), (2, 84261220), (4, 42130610), (5, 33704488), (8, 21065305), (10, 16852244), (20, 8426122), (40, 4213061), (163, 1033880), (326, 516940), (652, 258470), (815, 206776), (1304, 129235), (1630, 103388), (3260, 51694), (6520, 25847)]