19018840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2917}}^1$

素因数の和:3091

約数の個数: 32

約数和(自身を含む): 43069680

約数和(自身を除く): 24050840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2917, 3260, 5834, 6520, 11668, 14585, 23336, 29170, 58340, 116680, 475471, 950942, 1901884, 2377355, 3803768, 4754710, 9509420, 19018840]

約数ペア:

[(1, 19018840), (2, 9509420), (4, 4754710), (5, 3803768), (8, 2377355), (10, 1901884), (20, 950942), (40, 475471), (163, 116680), (326, 58340), (652, 29170), (815, 23336), (1304, 14585), (1630, 11668), (2917, 6520), (3260, 5834)]