20356544

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:637

約数の個数: 56

約数和(自身を含む): 44592240

約数和(自身を除く): 24235696

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 172, 208, 344, 416, 559, 569, 688, 832, 1118, 1138, 1376, 2236, 2276, 2752, 4472, 4552, 7397, 8944, 9104, 14794, 17888, 18208, 24467, 29588, 35776, 36416, 48934, 59176, 97868, 118352, 195736, 236704, 318071, 391472, 473408, 636142, 782944, 1272284, 1565888, 2544568, 5089136, 10178272, 20356544]

約数ペア:

[(1, 20356544), (2, 10178272), (4, 5089136), (8, 2544568), (13, 1565888), (16, 1272284), (26, 782944), (32, 636142), (43, 473408), (52, 391472), (64, 318071), (86, 236704), (104, 195736), (172, 118352), (208, 97868), (344, 59176), (416, 48934), (559, 36416), (569, 35776), (688, 29588), (832, 24467), (1118, 18208), (1138, 17888), (1376, 14794), (2236, 9104), (2276, 8944), (2752, 7397), (4472, 4552)]