864991010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{11903}}^1$

素因数の和:11979

約数の個数: 48

約数和(自身を含む): 1725318144

約数和(自身を除く): 860327134

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 169, 215, 338, 430, 559, 845, 1118, 1690, 2795, 5590, 7267, 11903, 14534, 23806, 36335, 59515, 72670, 119030, 154739, 309478, 511829, 773695, 1023658, 1547390, 2011607, 2559145, 4023214, 5118290, 6653777, 10058035, 13307554, 20116070, 33268885, 66537770, 86499101, 172998202, 432495505, 864991010]

約数ペア:

[(1, 864991010), (2, 432495505), (5, 172998202), (10, 86499101), (13, 66537770), (26, 33268885), (43, 20116070), (65, 13307554), (86, 10058035), (130, 6653777), (169, 5118290), (215, 4023214), (338, 2559145), (430, 2011607), (559, 1547390), (845, 1023658), (1118, 773695), (1690, 511829), (2795, 309478), (5590, 154739), (7267, 119030), (11903, 72670), (14534, 59515), (23806, 36335)]