28948240

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7699}}^1$

素因数の和:7759

約数の個数: 40

約数和(自身を含む): 68745600

約数和(自身を除く): 39797360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 7699, 15398, 30796, 38495, 61592, 76990, 123184, 153980, 307960, 361853, 615920, 723706, 1447412, 1809265, 2894824, 3618530, 5789648, 7237060, 14474120, 28948240]

約数ペア:

[(1, 28948240), (2, 14474120), (4, 7237060), (5, 5789648), (8, 3618530), (10, 2894824), (16, 1809265), (20, 1447412), (40, 723706), (47, 615920), (80, 361853), (94, 307960), (188, 153980), (235, 123184), (376, 76990), (470, 61592), (752, 38495), (940, 30796), (1880, 15398), (3760, 7699)]