20184736

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:446

約数の個数: 72

約数和(自身を含む): 47157012

約数和(自身を除く): 26972276

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 121, 143, 176, 208, 242, 286, 352, 401, 416, 484, 572, 802, 968, 1144, 1573, 1604, 1936, 2288, 3146, 3208, 3872, 4411, 4576, 5213, 6292, 6416, 8822, 10426, 12584, 12832, 17644, 20852, 25168, 35288, 41704, 48521, 50336, 57343, 70576, 83408, 97042, 114686, 141152, 166816, 194084, 229372, 388168, 458744, 630773, 776336, 917488, 1261546, 1552672, 1834976, 2523092, 5046184, 10092368, 20184736]

約数ペア:

[(1, 20184736), (2, 10092368), (4, 5046184), (8, 2523092), (11, 1834976), (13, 1552672), (16, 1261546), (22, 917488), (26, 776336), (32, 630773), (44, 458744), (52, 388168), (88, 229372), (104, 194084), (121, 166816), (143, 141152), (176, 114686), (208, 97042), (242, 83408), (286, 70576), (352, 57343), (401, 50336), (416, 48521), (484, 41704), (572, 35288), (802, 25168), (968, 20852), (1144, 17644), (1573, 12832), (1604, 12584), (1936, 10426), (2288, 8822), (3146, 6416), (3208, 6292), (3872, 5213), (4411, 4576)]