3949940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4817}}^1$

素因数の和:4867

約数の個数: 24

約数和(自身を含む): 8498952

約数和(自身を除く): 4549012

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 4817, 9634, 19268, 24085, 48170, 96340, 197497, 394994, 789988, 987485, 1974970, 3949940]

約数ペア:

[(1, 3949940), (2, 1974970), (4, 987485), (5, 789988), (10, 394994), (20, 197497), (41, 96340), (82, 48170), (164, 24085), (205, 19268), (410, 9634), (820, 4817)]