80047620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1109}}^1$

素因数の和:1525

約数の個数: 72

約数和(自身を含む): 243636120

約数和(自身を除く): 163588500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 401, 802, 1109, 1203, 1604, 2005, 2218, 2406, 3327, 3609, 4010, 4436, 4812, 5545, 6015, 6654, 7218, 8020, 9981, 11090, 12030, 13308, 14436, 16635, 18045, 19962, 22180, 24060, 33270, 36090, 39924, 49905, 66540, 72180, 99810, 199620, 444709, 889418, 1334127, 1778836, 2223545, 2668254, 4002381, 4447090, 5336508, 6670635, 8004762, 8894180, 13341270, 16009524, 20011905, 26682540, 40023810, 80047620]

約数ペア:

[(1, 80047620), (2, 40023810), (3, 26682540), (4, 20011905), (5, 16009524), (6, 13341270), (9, 8894180), (10, 8004762), (12, 6670635), (15, 5336508), (18, 4447090), (20, 4002381), (30, 2668254), (36, 2223545), (45, 1778836), (60, 1334127), (90, 889418), (180, 444709), (401, 199620), (802, 99810), (1109, 72180), (1203, 66540), (1604, 49905), (2005, 39924), (2218, 36090), (2406, 33270), (3327, 24060), (3609, 22180), (4010, 19962), (4436, 18045), (4812, 16635), (5545, 14436), (6015, 13308), (6654, 12030), (7218, 11090), (8020, 9981)]