9905720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 24883200

約数和(自身を除く): 14977480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 479, 517, 940, 958, 1034, 1880, 1916, 2068, 2395, 2585, 3832, 4136, 4790, 5170, 5269, 9580, 10340, 10538, 19160, 20680, 21076, 22513, 26345, 42152, 45026, 52690, 90052, 105380, 112565, 180104, 210760, 225130, 247643, 450260, 495286, 900520, 990572, 1238215, 1981144, 2476430, 4952860, 9905720]

約数ペア:

[(1, 9905720), (2, 4952860), (4, 2476430), (5, 1981144), (8, 1238215), (10, 990572), (11, 900520), (20, 495286), (22, 450260), (40, 247643), (44, 225130), (47, 210760), (55, 180104), (88, 112565), (94, 105380), (110, 90052), (188, 52690), (220, 45026), (235, 42152), (376, 26345), (440, 22513), (470, 21076), (479, 20680), (517, 19160), (940, 10538), (958, 10340), (1034, 9580), (1880, 5269), (1916, 5170), (2068, 4790), (2395, 4136), (2585, 3832)]