2809180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^2$

素因数の和:246

約数の個数: 36

約数和(自身を含む): 6493032

約数和(自身を除く): 3683852

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 1130, 1243, 2260, 2486, 4972, 6215, 12430, 12769, 24860, 25538, 51076, 63845, 127690, 140459, 255380, 280918, 561836, 702295, 1404590, 2809180]

約数ペア:

[(1, 2809180), (2, 1404590), (4, 702295), (5, 561836), (10, 280918), (11, 255380), (20, 140459), (22, 127690), (44, 63845), (55, 51076), (110, 25538), (113, 24860), (220, 12769), (226, 12430), (452, 6215), (565, 4972), (1130, 2486), (1243, 2260)]