21340560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88919}}^1$

素因数の和:88935

約数の個数: 40

約数和(自身を含む): 66156480

約数和(自身を除く): 44815920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88919, 177838, 266757, 355676, 444595, 533514, 711352, 889190, 1067028, 1333785, 1422704, 1778380, 2134056, 2667570, 3556760, 4268112, 5335140, 7113520, 10670280, 21340560]

約数ペア:

[(1, 21340560), (2, 10670280), (3, 7113520), (4, 5335140), (5, 4268112), (6, 3556760), (8, 2667570), (10, 2134056), (12, 1778380), (15, 1422704), (16, 1333785), (20, 1067028), (24, 889190), (30, 711352), (40, 533514), (48, 444595), (60, 355676), (80, 266757), (120, 177838), (240, 88919)]