20705630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9907}}^1$

素因数の和:9944

約数の個数: 32

約数和(自身を含む): 42802560

約数和(自身を除く): 22096930

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9907, 19814, 49535, 99070, 108977, 188233, 217954, 376466, 544885, 941165, 1089770, 1882330, 2070563, 4141126, 10352815, 20705630]

約数ペア:

[(1, 20705630), (2, 10352815), (5, 4141126), (10, 2070563), (11, 1882330), (19, 1089770), (22, 941165), (38, 544885), (55, 376466), (95, 217954), (110, 188233), (190, 108977), (209, 99070), (418, 49535), (1045, 19814), (2090, 9907)]