211345420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73897}}^1$

素因数の和:73930

約数の個数: 48

約数和(自身を含む): 521424288

約数和(自身を除く): 310078868

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 73897, 147794, 295588, 369485, 738970, 812867, 960661, 1477940, 1625734, 1921322, 3251468, 3842644, 4064335, 4803305, 8128670, 9606610, 10567271, 16257340, 19213220, 21134542, 42269084, 52836355, 105672710, 211345420]

約数ペア:

[(1, 211345420), (2, 105672710), (4, 52836355), (5, 42269084), (10, 21134542), (11, 19213220), (13, 16257340), (20, 10567271), (22, 9606610), (26, 8128670), (44, 4803305), (52, 4064335), (55, 3842644), (65, 3251468), (110, 1921322), (130, 1625734), (143, 1477940), (220, 960661), (260, 812867), (286, 738970), (572, 369485), (715, 295588), (1430, 147794), (2860, 73897)]