20707140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{563}}^1\times {\mathrm{613}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 58177728

約数和(自身を除く): 37470588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 563, 613, 1126, 1226, 1689, 1839, 2252, 2452, 2815, 3065, 3378, 3678, 5630, 6130, 6756, 7356, 8445, 9195, 11260, 12260, 16890, 18390, 33780, 36780, 345119, 690238, 1035357, 1380476, 1725595, 2070714, 3451190, 4141428, 5176785, 6902380, 10353570, 20707140]

約数ペア:

[(1, 20707140), (2, 10353570), (3, 6902380), (4, 5176785), (5, 4141428), (6, 3451190), (10, 2070714), (12, 1725595), (15, 1380476), (20, 1035357), (30, 690238), (60, 345119), (563, 36780), (613, 33780), (1126, 18390), (1226, 16890), (1689, 12260), (1839, 11260), (2252, 9195), (2452, 8445), (2815, 7356), (3065, 6756), (3378, 6130), (3678, 5630)]