20066540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{683}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 45849888

約数和(自身を除く): 25783348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 683, 1130, 1366, 1469, 2260, 2732, 2938, 3415, 5876, 6830, 7345, 8879, 13660, 14690, 17758, 29380, 35516, 44395, 77179, 88790, 154358, 177580, 308716, 385895, 771790, 1003327, 1543580, 2006654, 4013308, 5016635, 10033270, 20066540]

約数ペア:

[(1, 20066540), (2, 10033270), (4, 5016635), (5, 4013308), (10, 2006654), (13, 1543580), (20, 1003327), (26, 771790), (52, 385895), (65, 308716), (113, 177580), (130, 154358), (226, 88790), (260, 77179), (452, 44395), (565, 35516), (683, 29380), (1130, 17758), (1366, 14690), (1469, 13660), (2260, 8879), (2732, 7345), (2938, 6830), (3415, 5876)]