25799980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18169}}^1$

素因数の和:18249

約数の個数: 24

約数和(自身を含む): 54946080

約数和(自身を除く): 29146100

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 18169, 36338, 72676, 90845, 181690, 363380, 1289999, 2579998, 5159996, 6449995, 12899990, 25799980]

約数ペア:

[(1, 25799980), (2, 12899990), (4, 6449995), (5, 5159996), (10, 2579998), (20, 1289999), (71, 363380), (142, 181690), (284, 90845), (355, 72676), (710, 36338), (1420, 18169)]