21752802040

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{61861}}^1$

素因数の和:62080

約数の個数: 64

約数和(自身を含む): 50108220000

約数和(自身を除く): 28355417960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 149, 236, 295, 298, 472, 590, 596, 745, 1180, 1192, 1490, 2360, 2980, 5960, 8791, 17582, 35164, 43955, 61861, 70328, 87910, 123722, 175820, 247444, 309305, 351640, 494888, 618610, 1237220, 2474440, 3649799, 7299598, 9217289, 14599196, 18248995, 18434578, 29198392, 36497990, 36869156, 46086445, 72995980, 73738312, 92172890, 145991960, 184345780, 368691560, 543820051, 1087640102, 2175280204, 2719100255, 4350560408, 5438200510, 10876401020, 21752802040]

約数ペア:

[(1, 21752802040), (2, 10876401020), (4, 5438200510), (5, 4350560408), (8, 2719100255), (10, 2175280204), (20, 1087640102), (40, 543820051), (59, 368691560), (118, 184345780), (149, 145991960), (236, 92172890), (295, 73738312), (298, 72995980), (472, 46086445), (590, 36869156), (596, 36497990), (745, 29198392), (1180, 18434578), (1192, 18248995), (1490, 14599196), (2360, 9217289), (2980, 7299598), (5960, 3649799), (8791, 2474440), (17582, 1237220), (35164, 618610), (43955, 494888), (61861, 351640), (70328, 309305), (87910, 247444), (123722, 175820)]