20796512

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 72

約数和(自身を含む): 46453176

約数和(自身を除く): 25656664

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 121, 131, 164, 176, 242, 262, 328, 352, 451, 484, 524, 656, 902, 968, 1048, 1312, 1441, 1804, 1936, 2096, 2882, 3608, 3872, 4192, 4961, 5371, 5764, 7216, 9922, 10742, 11528, 14432, 15851, 19844, 21484, 23056, 31702, 39688, 42968, 46112, 59081, 63404, 79376, 85936, 118162, 126808, 158752, 171872, 236324, 253616, 472648, 507232, 649891, 945296, 1299782, 1890592, 2599564, 5199128, 10398256, 20796512]

約数ペア:

[(1, 20796512), (2, 10398256), (4, 5199128), (8, 2599564), (11, 1890592), (16, 1299782), (22, 945296), (32, 649891), (41, 507232), (44, 472648), (82, 253616), (88, 236324), (121, 171872), (131, 158752), (164, 126808), (176, 118162), (242, 85936), (262, 79376), (328, 63404), (352, 59081), (451, 46112), (484, 42968), (524, 39688), (656, 31702), (902, 23056), (968, 21484), (1048, 19844), (1312, 15851), (1441, 14432), (1804, 11528), (1936, 10742), (2096, 9922), (2882, 7216), (3608, 5764), (3872, 5371), (4192, 4961)]