20474416

素因数分解:

$2^4\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:154

約数の個数: 60

約数和(自身を含む): 43200360

約数和(自身を除く): 22725944

約数列:

[1, 2, 4, 8, 16, 23, 41, 46, 59, 82, 92, 118, 164, 184, 236, 328, 368, 472, 529, 656, 943, 944, 1058, 1357, 1886, 2116, 2419, 2714, 3772, 4232, 4838, 5428, 7544, 8464, 9676, 10856, 15088, 19352, 21689, 21712, 31211, 38704, 43378, 55637, 62422, 86756, 111274, 124844, 173512, 222548, 249688, 347024, 445096, 499376, 890192, 1279651, 2559302, 5118604, 10237208, 20474416]

約数ペア:

[(1, 20474416), (2, 10237208), (4, 5118604), (8, 2559302), (16, 1279651), (23, 890192), (41, 499376), (46, 445096), (59, 347024), (82, 249688), (92, 222548), (118, 173512), (164, 124844), (184, 111274), (236, 86756), (328, 62422), (368, 55637), (472, 43378), (529, 38704), (656, 31211), (943, 21712), (944, 21689), (1058, 19352), (1357, 15088), (1886, 10856), (2116, 9676), (2419, 8464), (2714, 7544), (3772, 5428), (4232, 4838)]