205323890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{821}}^1$

素因数の和:1198

約数の個数: 32

約数和(自身を含む): 375522480

約数和(自身を除く): 170198590

約数列:

[1, 2, 5, 10, 89, 178, 281, 445, 562, 821, 890, 1405, 1642, 2810, 4105, 8210, 25009, 50018, 73069, 125045, 146138, 230701, 250090, 365345, 461402, 730690, 1153505, 2307010, 20532389, 41064778, 102661945, 205323890]

約数ペア:

[(1, 205323890), (2, 102661945), (5, 41064778), (10, 20532389), (89, 2307010), (178, 1153505), (281, 730690), (445, 461402), (562, 365345), (821, 250090), (890, 230701), (1405, 146138), (1642, 125045), (2810, 73069), (4105, 50018), (8210, 25009)]