671660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 1596672

約数和(自身を除く): 925012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 71, 86, 110, 142, 172, 215, 220, 284, 355, 430, 473, 710, 781, 860, 946, 1420, 1562, 1892, 2365, 3053, 3124, 3905, 4730, 6106, 7810, 9460, 12212, 15265, 15620, 30530, 33583, 61060, 67166, 134332, 167915, 335830, 671660]

約数ペア:

[(1, 671660), (2, 335830), (4, 167915), (5, 134332), (10, 67166), (11, 61060), (20, 33583), (22, 30530), (43, 15620), (44, 15265), (55, 12212), (71, 9460), (86, 7810), (110, 6106), (142, 4730), (172, 3905), (215, 3124), (220, 3053), (284, 2365), (355, 1892), (430, 1562), (473, 1420), (710, 946), (781, 860)]