2139440

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:629

約数の個数: 40

約数和(自身を含む): 5088960

約数和(自身を除く): 2949520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 569, 752, 940, 1138, 1880, 2276, 2845, 3760, 4552, 5690, 9104, 11380, 22760, 26743, 45520, 53486, 106972, 133715, 213944, 267430, 427888, 534860, 1069720, 2139440]

約数ペア:

[(1, 2139440), (2, 1069720), (4, 534860), (5, 427888), (8, 267430), (10, 213944), (16, 133715), (20, 106972), (40, 53486), (47, 45520), (80, 26743), (94, 22760), (188, 11380), (235, 9104), (376, 5690), (470, 4552), (569, 3760), (752, 2845), (940, 2276), (1138, 1880)]