2666680

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 6051600

約数和(自身を除く): 3384920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 409, 652, 815, 818, 1304, 1630, 1636, 2045, 3260, 3272, 4090, 6520, 8180, 16360, 66667, 133334, 266668, 333335, 533336, 666670, 1333340, 2666680]

約数ペア:

[(1, 2666680), (2, 1333340), (4, 666670), (5, 533336), (8, 333335), (10, 266668), (20, 133334), (40, 66667), (163, 16360), (326, 8180), (409, 6520), (652, 4090), (815, 3272), (818, 3260), (1304, 2045), (1630, 1636)]