20948208

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 56916000

約数和(自身を除く): 35967792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 101, 116, 149, 174, 202, 232, 298, 303, 348, 404, 447, 464, 596, 606, 696, 808, 894, 1192, 1212, 1392, 1616, 1788, 2384, 2424, 2929, 3576, 4321, 4848, 5858, 7152, 8642, 8787, 11716, 12963, 15049, 17284, 17574, 23432, 25926, 30098, 34568, 35148, 45147, 46864, 51852, 60196, 69136, 70296, 90294, 103704, 120392, 140592, 180588, 207408, 240784, 361176, 436421, 722352, 872842, 1309263, 1745684, 2618526, 3491368, 5237052, 6982736, 10474104, 20948208]

約数ペア:

[(1, 20948208), (2, 10474104), (3, 6982736), (4, 5237052), (6, 3491368), (8, 2618526), (12, 1745684), (16, 1309263), (24, 872842), (29, 722352), (48, 436421), (58, 361176), (87, 240784), (101, 207408), (116, 180588), (149, 140592), (174, 120392), (202, 103704), (232, 90294), (298, 70296), (303, 69136), (348, 60196), (404, 51852), (447, 46864), (464, 45147), (596, 35148), (606, 34568), (696, 30098), (808, 25926), (894, 23432), (1192, 17574), (1212, 17284), (1392, 15049), (1616, 12963), (1788, 11716), (2384, 8787), (2424, 8642), (2929, 7152), (3576, 5858), (4321, 4848)]