20692760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 30628840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 359, 440, 524, 655, 718, 1048, 1310, 1436, 1441, 1795, 2620, 2872, 2882, 3590, 3949, 5240, 5764, 7180, 7205, 7898, 11528, 14360, 14410, 15796, 19745, 28820, 31592, 39490, 47029, 57640, 78980, 94058, 157960, 188116, 235145, 376232, 470290, 517319, 940580, 1034638, 1881160, 2069276, 2586595, 4138552, 5173190, 10346380, 20692760]

約数ペア:

[(1, 20692760), (2, 10346380), (4, 5173190), (5, 4138552), (8, 2586595), (10, 2069276), (11, 1881160), (20, 1034638), (22, 940580), (40, 517319), (44, 470290), (55, 376232), (88, 235145), (110, 188116), (131, 157960), (220, 94058), (262, 78980), (359, 57640), (440, 47029), (524, 39490), (655, 31592), (718, 28820), (1048, 19745), (1310, 15796), (1436, 14410), (1441, 14360), (1795, 11528), (2620, 7898), (2872, 7205), (2882, 7180), (3590, 5764), (3949, 5240)]