81746460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4019}}^1$

素因数の和:4147

約数の個数: 72

約数和(自身を含む): 250220880

約数和(自身を除く): 168474420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 226, 339, 452, 565, 678, 1017, 1130, 1356, 1695, 2034, 2260, 3390, 4019, 4068, 5085, 6780, 8038, 10170, 12057, 16076, 20095, 20340, 24114, 36171, 40190, 48228, 60285, 72342, 80380, 120570, 144684, 180855, 241140, 361710, 454147, 723420, 908294, 1362441, 1816588, 2270735, 2724882, 4087323, 4541470, 5449764, 6812205, 8174646, 9082940, 13624410, 16349292, 20436615, 27248820, 40873230, 81746460]

約数ペア:

[(1, 81746460), (2, 40873230), (3, 27248820), (4, 20436615), (5, 16349292), (6, 13624410), (9, 9082940), (10, 8174646), (12, 6812205), (15, 5449764), (18, 4541470), (20, 4087323), (30, 2724882), (36, 2270735), (45, 1816588), (60, 1362441), (90, 908294), (113, 723420), (180, 454147), (226, 361710), (339, 241140), (452, 180855), (565, 144684), (678, 120570), (1017, 80380), (1130, 72342), (1356, 60285), (1695, 48228), (2034, 40190), (2260, 36171), (3390, 24114), (4019, 20340), (4068, 20095), (5085, 16076), (6780, 12057), (8038, 10170)]