9917000

素因数分解:

$2^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 23811840

約数和(自身を除く): 13894840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 211, 235, 250, 376, 422, 470, 500, 844, 940, 1000, 1055, 1175, 1688, 1880, 2110, 2350, 4220, 4700, 5275, 5875, 8440, 9400, 9917, 10550, 11750, 19834, 21100, 23500, 26375, 39668, 42200, 47000, 49585, 52750, 79336, 99170, 105500, 198340, 211000, 247925, 396680, 495850, 991700, 1239625, 1983400, 2479250, 4958500, 9917000]

約数ペア:

[(1, 9917000), (2, 4958500), (4, 2479250), (5, 1983400), (8, 1239625), (10, 991700), (20, 495850), (25, 396680), (40, 247925), (47, 211000), (50, 198340), (94, 105500), (100, 99170), (125, 79336), (188, 52750), (200, 49585), (211, 47000), (235, 42200), (250, 39668), (376, 26375), (422, 23500), (470, 21100), (500, 19834), (844, 11750), (940, 10550), (1000, 9917), (1055, 9400), (1175, 8440), (1688, 5875), (1880, 5275), (2110, 4700), (2350, 4220)]