201879980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{142169}}^1$

素因数の和:142249

約数の個数: 24

約数和(自身を含む): 429922080

約数和(自身を除く): 228042100

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 142169, 284338, 568676, 710845, 1421690, 2843380, 10093999, 20187998, 40375996, 50469995, 100939990, 201879980]

約数ペア:

[(1, 201879980), (2, 100939990), (4, 50469995), (5, 40375996), (10, 20187998), (20, 10093999), (71, 2843380), (142, 1421690), (284, 710845), (355, 568676), (710, 284338), (1420, 142169)]