20751080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2003}}^1$

素因数の和:2058

約数の個数: 64

約数和(自身を含む): 54829440

約数和(自身を除く): 34078360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2003, 2072, 2590, 4006, 5180, 8012, 10015, 10360, 14021, 16024, 20030, 28042, 40060, 56084, 70105, 74111, 80120, 112168, 140210, 148222, 280420, 296444, 370555, 518777, 560840, 592888, 741110, 1037554, 1482220, 2075108, 2593885, 2964440, 4150216, 5187770, 10375540, 20751080]

約数ペア:

[(1, 20751080), (2, 10375540), (4, 5187770), (5, 4150216), (7, 2964440), (8, 2593885), (10, 2075108), (14, 1482220), (20, 1037554), (28, 741110), (35, 592888), (37, 560840), (40, 518777), (56, 370555), (70, 296444), (74, 280420), (140, 148222), (148, 140210), (185, 112168), (259, 80120), (280, 74111), (296, 70105), (370, 56084), (518, 40060), (740, 28042), (1036, 20030), (1295, 16024), (1480, 14021), (2003, 10360), (2072, 10015), (2590, 8012), (4006, 5180)]