78473020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{521}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 175216608

約数和(自身を除く): 96743588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 443, 521, 886, 1042, 1772, 2084, 2215, 2605, 4430, 5210, 7531, 8857, 8860, 10420, 15062, 17714, 30124, 35428, 37655, 44285, 75310, 88570, 150620, 177140, 230803, 461606, 923212, 1154015, 2308030, 3923651, 4616060, 7847302, 15694604, 19618255, 39236510, 78473020]

約数ペア:

[(1, 78473020), (2, 39236510), (4, 19618255), (5, 15694604), (10, 7847302), (17, 4616060), (20, 3923651), (34, 2308030), (68, 1154015), (85, 923212), (170, 461606), (340, 230803), (443, 177140), (521, 150620), (886, 88570), (1042, 75310), (1772, 44285), (2084, 37655), (2215, 35428), (2605, 30124), (4430, 17714), (5210, 15062), (7531, 10420), (8857, 8860)]