391641620

素因数分解:

$2^2\times 5^1\times {\mathrm{1453}}^1\times {\mathrm{13477}}^1$

素因数の和:14939

約数の個数: 24

約数和(自身を含む): 823074504

約数和(自身を除く): 431432884

約数列:

[1, 2, 4, 5, 10, 20, 1453, 2906, 5812, 7265, 13477, 14530, 26954, 29060, 53908, 67385, 134770, 269540, 19582081, 39164162, 78328324, 97910405, 195820810, 391641620]

約数ペア:

[(1, 391641620), (2, 195820810), (4, 97910405), (5, 78328324), (10, 39164162), (20, 19582081), (1453, 269540), (2906, 134770), (5812, 67385), (7265, 53908), (13477, 29060), (14530, 26954)]