20502660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40461180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 83, 92, 115, 138, 166, 179, 230, 249, 276, 332, 345, 358, 415, 460, 498, 537, 690, 716, 830, 895, 996, 1074, 1245, 1380, 1660, 1790, 1909, 2148, 2490, 2685, 3580, 3818, 4117, 4980, 5370, 5727, 7636, 8234, 9545, 10740, 11454, 12351, 14857, 16468, 19090, 20585, 22908, 24702, 28635, 29714, 38180, 41170, 44571, 49404, 57270, 59428, 61755, 74285, 82340, 89142, 114540, 123510, 148570, 178284, 222855, 247020, 297140, 341711, 445710, 683422, 891420, 1025133, 1366844, 1708555, 2050266, 3417110, 4100532, 5125665, 6834220, 10251330, 20502660]

約数ペア:

[(1, 20502660), (2, 10251330), (3, 6834220), (4, 5125665), (5, 4100532), (6, 3417110), (10, 2050266), (12, 1708555), (15, 1366844), (20, 1025133), (23, 891420), (30, 683422), (46, 445710), (60, 341711), (69, 297140), (83, 247020), (92, 222855), (115, 178284), (138, 148570), (166, 123510), (179, 114540), (230, 89142), (249, 82340), (276, 74285), (332, 61755), (345, 59428), (358, 57270), (415, 49404), (460, 44571), (498, 41170), (537, 38180), (690, 29714), (716, 28635), (830, 24702), (895, 22908), (996, 20585), (1074, 19090), (1245, 16468), (1380, 14857), (1660, 12351), (1790, 11454), (1909, 10740), (2148, 9545), (2490, 8234), (2685, 7636), (3580, 5727), (3818, 5370), (4117, 4980)]