18570640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 29640560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 449, 470, 517, 752, 880, 898, 940, 1034, 1796, 1880, 2068, 2245, 2585, 3592, 3760, 4136, 4490, 4939, 5170, 7184, 8272, 8980, 9878, 10340, 17960, 19756, 20680, 21103, 24695, 35920, 39512, 41360, 42206, 49390, 79024, 84412, 98780, 105515, 168824, 197560, 211030, 232133, 337648, 395120, 422060, 464266, 844120, 928532, 1160665, 1688240, 1857064, 2321330, 3714128, 4642660, 9285320, 18570640]

約数ペア:

[(1, 18570640), (2, 9285320), (4, 4642660), (5, 3714128), (8, 2321330), (10, 1857064), (11, 1688240), (16, 1160665), (20, 928532), (22, 844120), (40, 464266), (44, 422060), (47, 395120), (55, 337648), (80, 232133), (88, 211030), (94, 197560), (110, 168824), (176, 105515), (188, 98780), (220, 84412), (235, 79024), (376, 49390), (440, 42206), (449, 41360), (470, 39512), (517, 35920), (752, 24695), (880, 21103), (898, 20680), (940, 19756), (1034, 17960), (1796, 10340), (1880, 9878), (2068, 8980), (2245, 8272), (2585, 7184), (3592, 5170), (3760, 4939), (4136, 4490)]