21926440

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 29395160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 107, 109, 188, 214, 218, 235, 376, 428, 436, 470, 535, 545, 856, 872, 940, 1070, 1090, 1880, 2140, 2180, 4280, 4360, 5029, 5123, 10058, 10246, 11663, 20116, 20492, 23326, 25145, 25615, 40232, 40984, 46652, 50290, 51230, 58315, 93304, 100580, 102460, 116630, 201160, 204920, 233260, 466520, 548161, 1096322, 2192644, 2740805, 4385288, 5481610, 10963220, 21926440]

約数ペア:

[(1, 21926440), (2, 10963220), (4, 5481610), (5, 4385288), (8, 2740805), (10, 2192644), (20, 1096322), (40, 548161), (47, 466520), (94, 233260), (107, 204920), (109, 201160), (188, 116630), (214, 102460), (218, 100580), (235, 93304), (376, 58315), (428, 51230), (436, 50290), (470, 46652), (535, 40984), (545, 40232), (856, 25615), (872, 25145), (940, 23326), (1070, 20492), (1090, 20116), (1880, 11663), (2140, 10246), (2180, 10058), (4280, 5123), (4360, 5029)]