205500580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{1129}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 455616000

約数和(自身を除く): 250115420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 479, 958, 1129, 1916, 2258, 2395, 4516, 4790, 5645, 9101, 9580, 11290, 18202, 21451, 22580, 36404, 42902, 45505, 85804, 91010, 107255, 182020, 214510, 429020, 540791, 1081582, 2163164, 2703955, 5407910, 10275029, 10815820, 20550058, 41100116, 51375145, 102750290, 205500580]

約数ペア:

[(1, 205500580), (2, 102750290), (4, 51375145), (5, 41100116), (10, 20550058), (19, 10815820), (20, 10275029), (38, 5407910), (76, 2703955), (95, 2163164), (190, 1081582), (380, 540791), (479, 429020), (958, 214510), (1129, 182020), (1916, 107255), (2258, 91010), (2395, 85804), (4516, 45505), (4790, 42902), (5645, 36404), (9101, 22580), (9580, 21451), (11290, 18202)]