18365720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9769}}^1$

素因数の和:9827

約数の個数: 32

約数和(自身を含む): 42206400

約数和(自身を除く): 23840680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9769, 19538, 39076, 48845, 78152, 97690, 195380, 390760, 459143, 918286, 1836572, 2295715, 3673144, 4591430, 9182860, 18365720]

約数ペア:

[(1, 18365720), (2, 9182860), (4, 4591430), (5, 3673144), (8, 2295715), (10, 1836572), (20, 918286), (40, 459143), (47, 390760), (94, 195380), (188, 97690), (235, 78152), (376, 48845), (470, 39076), (940, 19538), (1880, 9769)]