78705380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1151}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 178827264

約数和(自身を除く): 100121884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263, 526, 1052, 1151, 1315, 2302, 2630, 3419, 4604, 5260, 5755, 6838, 11510, 13676, 14963, 17095, 23020, 29926, 34190, 59852, 68380, 74815, 149630, 299260, 302713, 605426, 1210852, 1513565, 3027130, 3935269, 6054260, 7870538, 15741076, 19676345, 39352690, 78705380]

約数ペア:

[(1, 78705380), (2, 39352690), (4, 19676345), (5, 15741076), (10, 7870538), (13, 6054260), (20, 3935269), (26, 3027130), (52, 1513565), (65, 1210852), (130, 605426), (260, 302713), (263, 299260), (526, 149630), (1052, 74815), (1151, 68380), (1315, 59852), (2302, 34190), (2630, 29926), (3419, 23020), (4604, 17095), (5260, 14963), (5755, 13676), (6838, 11510)]