2005031320

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{443591}}^1$

素因数の和:443715

約数の個数: 32

約数和(自身を含む): 4551253920

約数和(自身を除く): 2546222600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 443591, 887182, 1774364, 2217955, 3548728, 4435910, 8871820, 17743640, 50125783, 100251566, 200503132, 250628915, 401006264, 501257830, 1002515660, 2005031320]

約数ペア:

[(1, 2005031320), (2, 1002515660), (4, 501257830), (5, 401006264), (8, 250628915), (10, 200503132), (20, 100251566), (40, 50125783), (113, 17743640), (226, 8871820), (452, 4435910), (565, 3548728), (904, 2217955), (1130, 1774364), (2260, 887182), (4520, 443591)]