221085880

素因数分解:

$2^3\times 5^1\times {\mathrm{5527147}}^1$

素因数の和:5527158

約数の個数: 16

約数和(自身を含む): 497443320

約数和(自身を除く): 276357440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5527147, 11054294, 22108588, 27635735, 44217176, 55271470, 110542940, 221085880]

約数ペア:

[(1, 221085880), (2, 110542940), (4, 55271470), (5, 44217176), (8, 27635735), (10, 22108588), (20, 11054294), (40, 5527147)]