31318180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{661}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 69398784

約数和(自身を除く): 38080604

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 103, 115, 206, 230, 412, 460, 515, 661, 1030, 1322, 2060, 2369, 2644, 3305, 4738, 6610, 9476, 11845, 13220, 15203, 23690, 30406, 47380, 60812, 68083, 76015, 136166, 152030, 272332, 304060, 340415, 680830, 1361660, 1565909, 3131818, 6263636, 7829545, 15659090, 31318180]

約数ペア:

[(1, 31318180), (2, 15659090), (4, 7829545), (5, 6263636), (10, 3131818), (20, 1565909), (23, 1361660), (46, 680830), (92, 340415), (103, 304060), (115, 272332), (206, 152030), (230, 136166), (412, 76015), (460, 68083), (515, 60812), (661, 47380), (1030, 30406), (1322, 23690), (2060, 15203), (2369, 13220), (2644, 11845), (3305, 9476), (4738, 6610)]