20172066980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{982087}}^1$

素因数の和:982188

約数の個数: 48

約数和(自身を含む): 46197419520

約数和(自身を除く): 26025352540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 982087, 1964174, 3928348, 4910435, 9820870, 12767131, 19641740, 25534262, 51068524, 63835655, 77584873, 127671310, 155169746, 255342620, 310339492, 387924365, 775848730, 1008603349, 1551697460, 2017206698, 4034413396, 5043016745, 10086033490, 20172066980]

約数ペア:

[(1, 20172066980), (2, 10086033490), (4, 5043016745), (5, 4034413396), (10, 2017206698), (13, 1551697460), (20, 1008603349), (26, 775848730), (52, 387924365), (65, 310339492), (79, 255342620), (130, 155169746), (158, 127671310), (260, 77584873), (316, 63835655), (395, 51068524), (790, 25534262), (1027, 19641740), (1580, 12767131), (2054, 9820870), (4108, 4910435), (5135, 3928348), (10270, 1964174), (20540, 982087)]