18843400

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1327}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 44461440

約数和(自身を除く): 25618040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1327, 1420, 1775, 2654, 2840, 3550, 5308, 6635, 7100, 10616, 13270, 14200, 26540, 33175, 53080, 66350, 94217, 132700, 188434, 265400, 376868, 471085, 753736, 942170, 1884340, 2355425, 3768680, 4710850, 9421700, 18843400]

約数ペア:

[(1, 18843400), (2, 9421700), (4, 4710850), (5, 3768680), (8, 2355425), (10, 1884340), (20, 942170), (25, 753736), (40, 471085), (50, 376868), (71, 265400), (100, 188434), (142, 132700), (200, 94217), (284, 66350), (355, 53080), (568, 33175), (710, 26540), (1327, 14200), (1420, 13270), (1775, 10616), (2654, 7100), (2840, 6635), (3550, 5308)]