20546840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13883}}^1$

素因数の和:13931

約数の個数: 32

約数和(自身を含む): 47483280

約数和(自身を除く): 26936440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13883, 27766, 55532, 69415, 111064, 138830, 277660, 513671, 555320, 1027342, 2054684, 2568355, 4109368, 5136710, 10273420, 20546840]

約数ペア:

[(1, 20546840), (2, 10273420), (4, 5136710), (5, 4109368), (8, 2568355), (10, 2054684), (20, 1027342), (37, 555320), (40, 513671), (74, 277660), (148, 138830), (185, 111064), (296, 69415), (370, 55532), (740, 27766), (1480, 13883)]