81252540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{587}}^1\times {\mathrm{769}}^1$

素因数の和:1371

約数の個数: 72

約数和(自身を含む): 247206960

約数和(自身を除く): 165954420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 587, 769, 1174, 1538, 1761, 2307, 2348, 2935, 3076, 3522, 3845, 4614, 5283, 5870, 6921, 7044, 7690, 8805, 9228, 10566, 11535, 11740, 13842, 15380, 17610, 21132, 23070, 26415, 27684, 34605, 35220, 46140, 52830, 69210, 105660, 138420, 451403, 902806, 1354209, 1805612, 2257015, 2708418, 4062627, 4514030, 5416836, 6771045, 8125254, 9028060, 13542090, 16250508, 20313135, 27084180, 40626270, 81252540]

約数ペア:

[(1, 81252540), (2, 40626270), (3, 27084180), (4, 20313135), (5, 16250508), (6, 13542090), (9, 9028060), (10, 8125254), (12, 6771045), (15, 5416836), (18, 4514030), (20, 4062627), (30, 2708418), (36, 2257015), (45, 1805612), (60, 1354209), (90, 902806), (180, 451403), (587, 138420), (769, 105660), (1174, 69210), (1538, 52830), (1761, 46140), (2307, 35220), (2348, 34605), (2935, 27684), (3076, 26415), (3522, 23070), (3845, 21132), (4614, 17610), (5283, 15380), (5870, 13842), (6921, 11740), (7044, 11535), (7690, 10566), (8805, 9228)]