20724352

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 25542848

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 64, 82, 88, 128, 164, 176, 328, 352, 359, 451, 656, 704, 718, 902, 1312, 1408, 1436, 1804, 2624, 2872, 3608, 3949, 5248, 5744, 7216, 7898, 11488, 14432, 14719, 15796, 22976, 28864, 29438, 31592, 45952, 57728, 58876, 63184, 117752, 126368, 161909, 235504, 252736, 323818, 471008, 505472, 647636, 942016, 1295272, 1884032, 2590544, 5181088, 10362176, 20724352]

約数ペア:

[(1, 20724352), (2, 10362176), (4, 5181088), (8, 2590544), (11, 1884032), (16, 1295272), (22, 942016), (32, 647636), (41, 505472), (44, 471008), (64, 323818), (82, 252736), (88, 235504), (128, 161909), (164, 126368), (176, 117752), (328, 63184), (352, 58876), (359, 57728), (451, 45952), (656, 31592), (704, 29438), (718, 28864), (902, 22976), (1312, 15796), (1408, 14719), (1436, 14432), (1804, 11488), (2624, 7898), (2872, 7216), (3608, 5744), (3949, 5248)]