20445135

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80177}}^1$

素因数の和:80202

約数の個数: 16

約数和(自身を含む): 34636896

約数和(自身を除く): 14191761

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80177, 240531, 400885, 1202655, 1363009, 4089027, 6815045, 20445135]

約数ペア:

[(1, 20445135), (3, 6815045), (5, 4089027), (15, 1363009), (17, 1202655), (51, 400885), (85, 240531), (255, 80177)]