81820560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{340919}}^1$

素因数の和:340935

約数の個数: 40

約数和(自身を含む): 253644480

約数和(自身を除く): 171823920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 340919, 681838, 1022757, 1363676, 1704595, 2045514, 2727352, 3409190, 4091028, 5113785, 5454704, 6818380, 8182056, 10227570, 13636760, 16364112, 20455140, 27273520, 40910280, 81820560]

約数ペア:

[(1, 81820560), (2, 40910280), (3, 27273520), (4, 20455140), (5, 16364112), (6, 13636760), (8, 10227570), (10, 8182056), (12, 6818380), (15, 5454704), (16, 5113785), (20, 4091028), (24, 3409190), (30, 2727352), (40, 2045514), (48, 1704595), (60, 1363676), (80, 1022757), (120, 681838), (240, 340919)]