78461920

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1823}}^1$

素因数の和:2107

約数の個数: 48

約数和(自身を含む): 186157440

約数和(自身を除く): 107695520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 538, 1076, 1345, 1823, 2152, 2690, 3646, 4304, 5380, 7292, 8608, 9115, 10760, 14584, 18230, 21520, 29168, 36460, 43040, 58336, 72920, 145840, 291680, 490387, 980774, 1961548, 2451935, 3923096, 4903870, 7846192, 9807740, 15692384, 19615480, 39230960, 78461920]

約数ペア:

[(1, 78461920), (2, 39230960), (4, 19615480), (5, 15692384), (8, 9807740), (10, 7846192), (16, 4903870), (20, 3923096), (32, 2451935), (40, 1961548), (80, 980774), (160, 490387), (269, 291680), (538, 145840), (1076, 72920), (1345, 58336), (1823, 43040), (2152, 36460), (2690, 29168), (3646, 21520), (4304, 18230), (5380, 14584), (7292, 10760), (8608, 9115)]