681942490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{11467}}^1$

素因数の和:11806

約数の個数: 32

約数和(自身を含む): 1296342720

約数和(自身を除く): 614400230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 313, 626, 1565, 3130, 5947, 11467, 11894, 22934, 29735, 57335, 59470, 114670, 217873, 435746, 1089365, 2178730, 3589171, 7178342, 17945855, 35891710, 68194249, 136388498, 340971245, 681942490]

約数ペア:

[(1, 681942490), (2, 340971245), (5, 136388498), (10, 68194249), (19, 35891710), (38, 17945855), (95, 7178342), (190, 3589171), (313, 2178730), (626, 1089365), (1565, 435746), (3130, 217873), (5947, 114670), (11467, 59470), (11894, 57335), (22934, 29735)]