21455500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 31379828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 83, 94, 100, 110, 125, 166, 188, 220, 235, 250, 275, 332, 415, 470, 500, 517, 550, 830, 913, 940, 1034, 1100, 1175, 1375, 1660, 1826, 2068, 2075, 2350, 2585, 2750, 3652, 3901, 4150, 4565, 4700, 5170, 5500, 5875, 7802, 8300, 9130, 10340, 10375, 11750, 12925, 15604, 18260, 19505, 20750, 22825, 23500, 25850, 39010, 41500, 42911, 45650, 51700, 64625, 78020, 85822, 91300, 97525, 114125, 129250, 171644, 195050, 214555, 228250, 258500, 390100, 429110, 456500, 487625, 858220, 975250, 1072775, 1950500, 2145550, 4291100, 5363875, 10727750, 21455500]

約数ペア:

[(1, 21455500), (2, 10727750), (4, 5363875), (5, 4291100), (10, 2145550), (11, 1950500), (20, 1072775), (22, 975250), (25, 858220), (44, 487625), (47, 456500), (50, 429110), (55, 390100), (83, 258500), (94, 228250), (100, 214555), (110, 195050), (125, 171644), (166, 129250), (188, 114125), (220, 97525), (235, 91300), (250, 85822), (275, 78020), (332, 64625), (415, 51700), (470, 45650), (500, 42911), (517, 41500), (550, 39010), (830, 25850), (913, 23500), (940, 22825), (1034, 20750), (1100, 19505), (1175, 18260), (1375, 15604), (1660, 12925), (1826, 11750), (2068, 10375), (2075, 10340), (2350, 9130), (2585, 8300), (2750, 7802), (3652, 5875), (3901, 5500), (4150, 5170), (4565, 4700)]