397351340

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{192889}}^1$

素因数の和:193001

約数の個数: 24

約数和(自身を含む): 842543520

約数和(自身を除く): 445192180

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 192889, 385778, 771556, 964445, 1928890, 3857780, 19867567, 39735134, 79470268, 99337835, 198675670, 397351340]

約数ペア:

[(1, 397351340), (2, 198675670), (4, 99337835), (5, 79470268), (10, 39735134), (20, 19867567), (103, 3857780), (206, 1928890), (412, 964445), (515, 771556), (1030, 385778), (2060, 192889)]