27867620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 64266048

約数和(自身を除く): 36398428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 643, 788, 985, 1286, 1970, 2167, 2572, 3215, 3940, 4334, 6430, 7073, 8668, 10835, 12860, 14146, 21670, 28292, 35365, 43340, 70730, 126671, 141460, 253342, 506684, 633355, 1266710, 1393381, 2533420, 2786762, 5573524, 6966905, 13933810, 27867620]

約数ペア:

[(1, 27867620), (2, 13933810), (4, 6966905), (5, 5573524), (10, 2786762), (11, 2533420), (20, 1393381), (22, 1266710), (44, 633355), (55, 506684), (110, 253342), (197, 141460), (220, 126671), (394, 70730), (643, 43340), (788, 35365), (985, 28292), (1286, 21670), (1970, 14146), (2167, 12860), (2572, 10835), (3215, 8668), (3940, 7073), (4334, 6430)]