20558272

素因数分解:

$2^6\times 7^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:549

約数の個数: 56

約数和(自身を含む): 47162720

約数和(自身を除く): 26604448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 109, 112, 218, 224, 421, 436, 448, 763, 842, 872, 1526, 1684, 1744, 2947, 3052, 3368, 3488, 5894, 6104, 6736, 6976, 11788, 12208, 13472, 23576, 24416, 26944, 45889, 47152, 48832, 91778, 94304, 183556, 188608, 321223, 367112, 642446, 734224, 1284892, 1468448, 2569784, 2936896, 5139568, 10279136, 20558272]

約数ペア:

[(1, 20558272), (2, 10279136), (4, 5139568), (7, 2936896), (8, 2569784), (14, 1468448), (16, 1284892), (28, 734224), (32, 642446), (56, 367112), (64, 321223), (109, 188608), (112, 183556), (218, 94304), (224, 91778), (421, 48832), (436, 47152), (448, 45889), (763, 26944), (842, 24416), (872, 23576), (1526, 13472), (1684, 12208), (1744, 11788), (2947, 6976), (3052, 6736), (3368, 6104), (3488, 5894)]