20555904

素因数分解:

$2^7\times 3^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 55080000

約数和(自身を除く): 34524096

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 199, 269, 384, 398, 538, 597, 796, 807, 1076, 1194, 1592, 1614, 2152, 2388, 3184, 3228, 4304, 4776, 6368, 6456, 8608, 9552, 12736, 12912, 17216, 19104, 25472, 25824, 34432, 38208, 51648, 53531, 76416, 103296, 107062, 160593, 214124, 321186, 428248, 642372, 856496, 1284744, 1712992, 2569488, 3425984, 5138976, 6851968, 10277952, 20555904]

約数ペア:

[(1, 20555904), (2, 10277952), (3, 6851968), (4, 5138976), (6, 3425984), (8, 2569488), (12, 1712992), (16, 1284744), (24, 856496), (32, 642372), (48, 428248), (64, 321186), (96, 214124), (128, 160593), (192, 107062), (199, 103296), (269, 76416), (384, 53531), (398, 51648), (538, 38208), (597, 34432), (796, 25824), (807, 25472), (1076, 19104), (1194, 17216), (1592, 12912), (1614, 12736), (2152, 9552), (2388, 8608), (3184, 6456), (3228, 6368), (4304, 4776)]