20809576612

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{2857}}^1$

素因数の和:3133

約数の個数: 72

約数和(自身を含む): 40710209400

約数和(自身を除く): 19900632788

約数列:

[1, 2, 4, 11, 22, 44, 101, 121, 149, 202, 242, 298, 404, 484, 596, 1111, 1639, 2222, 2857, 3278, 4444, 5714, 6556, 11428, 12221, 15049, 18029, 24442, 30098, 31427, 36058, 48884, 60196, 62854, 72116, 125708, 165539, 288557, 331078, 345697, 425693, 577114, 662156, 691394, 851386, 1154228, 1382788, 1702772, 1820929, 3174127, 3641858, 4682623, 6348254, 7283716, 9365246, 12696508, 18730492, 34915397, 42994993, 51508853, 69830794, 85989986, 103017706, 139661588, 171979972, 206035412, 472944923, 945889846, 1891779692, 5202394153, 10404788306, 20809576612]

約数ペア:

[(1, 20809576612), (2, 10404788306), (4, 5202394153), (11, 1891779692), (22, 945889846), (44, 472944923), (101, 206035412), (121, 171979972), (149, 139661588), (202, 103017706), (242, 85989986), (298, 69830794), (404, 51508853), (484, 42994993), (596, 34915397), (1111, 18730492), (1639, 12696508), (2222, 9365246), (2857, 7283716), (3278, 6348254), (4444, 4682623), (5714, 3641858), (6556, 3174127), (11428, 1820929), (12221, 1702772), (15049, 1382788), (18029, 1154228), (24442, 851386), (30098, 691394), (31427, 662156), (36058, 577114), (48884, 425693), (60196, 345697), (62854, 331078), (72116, 288557), (125708, 165539)]