18402990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 28253010

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 149, 179, 230, 298, 345, 358, 447, 537, 690, 745, 894, 895, 1074, 1490, 1790, 2235, 2685, 3427, 4117, 4470, 5370, 6854, 8234, 10281, 12351, 17135, 20562, 20585, 24702, 26671, 34270, 41170, 51405, 53342, 61755, 80013, 102810, 123510, 133355, 160026, 266710, 400065, 613433, 800130, 1226866, 1840299, 3067165, 3680598, 6134330, 9201495, 18402990]

約数ペア:

[(1, 18402990), (2, 9201495), (3, 6134330), (5, 3680598), (6, 3067165), (10, 1840299), (15, 1226866), (23, 800130), (30, 613433), (46, 400065), (69, 266710), (115, 160026), (138, 133355), (149, 123510), (179, 102810), (230, 80013), (298, 61755), (345, 53342), (358, 51405), (447, 41170), (537, 34270), (690, 26671), (745, 24702), (894, 20585), (895, 20562), (1074, 17135), (1490, 12351), (1790, 10281), (2235, 8234), (2685, 6854), (3427, 5370), (4117, 4470)]