20128022480

素因数分解:

$2^4\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{231463}}^1$

素因数の和:232563

約数の個数: 40

約数和(自身を含む): 46840906752

約数和(自身を除く): 26712884272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1087, 2174, 4348, 5435, 8696, 10870, 17392, 21740, 43480, 86960, 231463, 462926, 925852, 1157315, 1851704, 2314630, 3703408, 4629260, 9258520, 18517040, 251600281, 503200562, 1006401124, 1258001405, 2012802248, 2516002810, 4025604496, 5032005620, 10064011240, 20128022480]

約数ペア:

[(1, 20128022480), (2, 10064011240), (4, 5032005620), (5, 4025604496), (8, 2516002810), (10, 2012802248), (16, 1258001405), (20, 1006401124), (40, 503200562), (80, 251600281), (1087, 18517040), (2174, 9258520), (4348, 4629260), (5435, 3703408), (8696, 2314630), (10870, 1851704), (17392, 1157315), (21740, 925852), (43480, 462926), (86960, 231463)]