2016740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 4717440

約数和(自身を除く): 2700700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 103, 110, 178, 206, 220, 356, 412, 445, 515, 890, 979, 1030, 1133, 1780, 1958, 2060, 2266, 3916, 4532, 4895, 5665, 9167, 9790, 11330, 18334, 19580, 22660, 36668, 45835, 91670, 100837, 183340, 201674, 403348, 504185, 1008370, 2016740]

約数ペア:

[(1, 2016740), (2, 1008370), (4, 504185), (5, 403348), (10, 201674), (11, 183340), (20, 100837), (22, 91670), (44, 45835), (55, 36668), (89, 22660), (103, 19580), (110, 18334), (178, 11330), (206, 9790), (220, 9167), (356, 5665), (412, 4895), (445, 4532), (515, 3916), (890, 2266), (979, 2060), (1030, 1958), (1133, 1780)]