20455140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{340919}}^1$

素因数の和:340931

約数の個数: 24

約数和(自身を含む): 57274560

約数和(自身を除く): 36819420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 340919, 681838, 1022757, 1363676, 1704595, 2045514, 3409190, 4091028, 5113785, 6818380, 10227570, 20455140]

約数ペア:

[(1, 20455140), (2, 10227570), (3, 6818380), (4, 5113785), (5, 4091028), (6, 3409190), (10, 2045514), (12, 1704595), (15, 1363676), (20, 1022757), (30, 681838), (60, 340919)]