81948860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5683}}^1$

素因数の和:5802

約数の個数: 48

約数和(自身を含む): 198621696

約数和(自身を除く): 116672836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 5683, 7210, 11366, 14420, 22732, 28415, 39781, 56830, 79562, 113660, 159124, 198905, 397810, 585349, 795620, 1170698, 2341396, 2926745, 4097443, 5853490, 8194886, 11706980, 16389772, 20487215, 40974430, 81948860]

約数ペア:

[(1, 81948860), (2, 40974430), (4, 20487215), (5, 16389772), (7, 11706980), (10, 8194886), (14, 5853490), (20, 4097443), (28, 2926745), (35, 2341396), (70, 1170698), (103, 795620), (140, 585349), (206, 397810), (412, 198905), (515, 159124), (721, 113660), (1030, 79562), (1442, 56830), (2060, 39781), (2884, 28415), (3605, 22732), (5683, 14420), (7210, 11366)]