18628855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 8742665

約数列:

[1, 5, 7, 17, 35, 85, 119, 131, 239, 595, 655, 917, 1195, 1673, 2227, 4063, 4585, 8365, 11135, 15589, 20315, 28441, 31309, 77945, 142205, 156545, 219163, 532253, 1095815, 2661265, 3725771, 18628855]

約数ペア:

[(1, 18628855), (5, 3725771), (7, 2661265), (17, 1095815), (35, 532253), (85, 219163), (119, 156545), (131, 142205), (239, 77945), (595, 31309), (655, 28441), (917, 20315), (1195, 15589), (1673, 11135), (2227, 8365), (4063, 4585)]