20309645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{3917}}^1$

素因数の和:4000

約数の個数: 16

約数和(自身を含む): 26234928

約数和(自身を除く): 5925283

約数列:

[1, 5, 17, 61, 85, 305, 1037, 3917, 5185, 19585, 66589, 238937, 332945, 1194685, 4061929, 20309645]

約数ペア:

[(1, 20309645), (5, 4061929), (17, 1194685), (61, 332945), (85, 238937), (305, 66589), (1037, 19585), (3917, 5185)]