16781460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 30392940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 719, 778, 1167, 1438, 1556, 1945, 2157, 2334, 2876, 3595, 3890, 4314, 4668, 5835, 7190, 7780, 8628, 10785, 11670, 14380, 21570, 23340, 43140, 279691, 559382, 839073, 1118764, 1398455, 1678146, 2796910, 3356292, 4195365, 5593820, 8390730, 16781460]

約数ペア:

[(1, 16781460), (2, 8390730), (3, 5593820), (4, 4195365), (5, 3356292), (6, 2796910), (10, 1678146), (12, 1398455), (15, 1118764), (20, 839073), (30, 559382), (60, 279691), (389, 43140), (719, 23340), (778, 21570), (1167, 14380), (1438, 11670), (1556, 10785), (1945, 8628), (2157, 7780), (2334, 7190), (2876, 5835), (3595, 4668), (3890, 4314)]