19070720

素因数分解:

$2^8\times 5^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 46799424

約数和(自身を除く): 27728704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 256, 317, 320, 376, 470, 634, 640, 752, 940, 1268, 1280, 1504, 1585, 1880, 2536, 3008, 3170, 3760, 5072, 6016, 6340, 7520, 10144, 12032, 12680, 14899, 15040, 20288, 25360, 29798, 30080, 40576, 50720, 59596, 60160, 74495, 81152, 101440, 119192, 148990, 202880, 238384, 297980, 405760, 476768, 595960, 953536, 1191920, 1907072, 2383840, 3814144, 4767680, 9535360, 19070720]

約数ペア:

[(1, 19070720), (2, 9535360), (4, 4767680), (5, 3814144), (8, 2383840), (10, 1907072), (16, 1191920), (20, 953536), (32, 595960), (40, 476768), (47, 405760), (64, 297980), (80, 238384), (94, 202880), (128, 148990), (160, 119192), (188, 101440), (235, 81152), (256, 74495), (317, 60160), (320, 59596), (376, 50720), (470, 40576), (634, 30080), (640, 29798), (752, 25360), (940, 20288), (1268, 15040), (1280, 14899), (1504, 12680), (1585, 12032), (1880, 10144), (2536, 7520), (3008, 6340), (3170, 6016), (3760, 5072)]