18563120

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4937}}^1$

素因数の和:4997

約数の個数: 40

約数和(自身を含む): 44086464

約数和(自身を除く): 25523344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 4937, 9874, 19748, 24685, 39496, 49370, 78992, 98740, 197480, 232039, 394960, 464078, 928156, 1160195, 1856312, 2320390, 3712624, 4640780, 9281560, 18563120]

約数ペア:

[(1, 18563120), (2, 9281560), (4, 4640780), (5, 3712624), (8, 2320390), (10, 1856312), (16, 1160195), (20, 928156), (40, 464078), (47, 394960), (80, 232039), (94, 197480), (188, 98740), (235, 78992), (376, 49370), (470, 39496), (752, 24685), (940, 19748), (1880, 9874), (3760, 4937)]