39856940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 86486400

約数和(自身を除く): 46629460

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 109, 188, 218, 235, 389, 436, 470, 545, 778, 940, 1090, 1556, 1945, 2180, 3890, 5123, 7780, 10246, 18283, 20492, 25615, 36566, 42401, 51230, 73132, 84802, 91415, 102460, 169604, 182830, 212005, 365660, 424010, 848020, 1992847, 3985694, 7971388, 9964235, 19928470, 39856940]

約数ペア:

[(1, 39856940), (2, 19928470), (4, 9964235), (5, 7971388), (10, 3985694), (20, 1992847), (47, 848020), (94, 424010), (109, 365660), (188, 212005), (218, 182830), (235, 169604), (389, 102460), (436, 91415), (470, 84802), (545, 73132), (778, 51230), (940, 42401), (1090, 36566), (1556, 25615), (1945, 20492), (2180, 18283), (3890, 10246), (5123, 7780)]