390351340

素因数分解:

$2^2\times 5^1\times {\mathrm{1901}}^1\times {\mathrm{10267}}^1$

素因数の和:12177

約数の個数: 24

約数和(自身を含む): 820248912

約数和(自身を除く): 429897572

約数列:

[1, 2, 4, 5, 10, 20, 1901, 3802, 7604, 9505, 10267, 19010, 20534, 38020, 41068, 51335, 102670, 205340, 19517567, 39035134, 78070268, 97587835, 195175670, 390351340]

約数ペア:

[(1, 390351340), (2, 195175670), (4, 97587835), (5, 78070268), (10, 39035134), (20, 19517567), (1901, 205340), (3802, 102670), (7604, 51335), (9505, 41068), (10267, 38020), (19010, 20534)]