12718120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2917}}^1$

素因数の和:3037

約数の個数: 32

約数和(自身を含む): 28888200

約数和(自身を除く): 16170080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 2917, 4360, 5834, 11668, 14585, 23336, 29170, 58340, 116680, 317953, 635906, 1271812, 1589765, 2543624, 3179530, 6359060, 12718120]

約数ペア:

[(1, 12718120), (2, 6359060), (4, 3179530), (5, 2543624), (8, 1589765), (10, 1271812), (20, 635906), (40, 317953), (109, 116680), (218, 58340), (436, 29170), (545, 23336), (872, 14585), (1090, 11668), (2180, 5834), (2917, 4360)]