17980493840

素因数分解:

$2^4\times 5^1\times {\mathrm{224756173}}^1$

素因数の和:224756186

約数の個数: 20

約数和(自身を含む): 41804648364

約数和(自身を除く): 23824154524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 224756173, 449512346, 899024692, 1123780865, 1798049384, 2247561730, 3596098768, 4495123460, 8990246920, 17980493840]

約数ペア:

[(1, 17980493840), (2, 8990246920), (4, 4495123460), (5, 3596098768), (8, 2247561730), (10, 1798049384), (16, 1123780865), (20, 899024692), (40, 449512346), (80, 224756173)]