18805980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{827}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 52859520

約数和(自身を除く): 34053540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 379, 758, 827, 1137, 1516, 1654, 1895, 2274, 2481, 3308, 3790, 4135, 4548, 4962, 5685, 7580, 8270, 9924, 11370, 12405, 16540, 22740, 24810, 49620, 313433, 626866, 940299, 1253732, 1567165, 1880598, 3134330, 3761196, 4701495, 6268660, 9402990, 18805980]

約数ペア:

[(1, 18805980), (2, 9402990), (3, 6268660), (4, 4701495), (5, 3761196), (6, 3134330), (10, 1880598), (12, 1567165), (15, 1253732), (20, 940299), (30, 626866), (60, 313433), (379, 49620), (758, 24810), (827, 22740), (1137, 16540), (1516, 12405), (1654, 11370), (1895, 9924), (2274, 8270), (2481, 7580), (3308, 5685), (3790, 4962), (4135, 4548)]