16218520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2917}}^1$

素因数の和:3067

約数の個数: 32

約数和(自身を含む): 36766800

約数和(自身を除く): 20548280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 2917, 5560, 5834, 11668, 14585, 23336, 29170, 58340, 116680, 405463, 810926, 1621852, 2027315, 3243704, 4054630, 8109260, 16218520]

約数ペア:

[(1, 16218520), (2, 8109260), (4, 4054630), (5, 3243704), (8, 2027315), (10, 1621852), (20, 810926), (40, 405463), (139, 116680), (278, 58340), (556, 29170), (695, 23336), (1112, 14585), (1390, 11668), (2780, 5834), (2917, 5560)]