80851980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{122503}}^1$

素因数の和:122526

約数の個数: 48

約数和(自身を含む): 246968064

約数和(自身を除く): 166116084

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 122503, 245006, 367509, 490012, 612515, 735018, 1225030, 1347533, 1470036, 1837545, 2450060, 2695066, 3675090, 4042599, 5390132, 6737665, 7350180, 8085198, 13475330, 16170396, 20212995, 26950660, 40425990, 80851980]

約数ペア:

[(1, 80851980), (2, 40425990), (3, 26950660), (4, 20212995), (5, 16170396), (6, 13475330), (10, 8085198), (11, 7350180), (12, 6737665), (15, 5390132), (20, 4042599), (22, 3675090), (30, 2695066), (33, 2450060), (44, 1837545), (55, 1470036), (60, 1347533), (66, 1225030), (110, 735018), (132, 612515), (165, 490012), (220, 367509), (330, 245006), (660, 122503)]