13787920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 34640640

約数和(自身を除く): 20852720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 193, 235, 304, 376, 380, 386, 470, 752, 760, 772, 893, 940, 965, 1520, 1544, 1786, 1880, 1930, 3088, 3572, 3667, 3760, 3860, 4465, 7144, 7334, 7720, 8930, 9071, 14288, 14668, 15440, 17860, 18142, 18335, 29336, 35720, 36284, 36670, 45355, 58672, 71440, 72568, 73340, 90710, 145136, 146680, 172349, 181420, 293360, 344698, 362840, 689396, 725680, 861745, 1378792, 1723490, 2757584, 3446980, 6893960, 13787920]

約数ペア:

[(1, 13787920), (2, 6893960), (4, 3446980), (5, 2757584), (8, 1723490), (10, 1378792), (16, 861745), (19, 725680), (20, 689396), (38, 362840), (40, 344698), (47, 293360), (76, 181420), (80, 172349), (94, 146680), (95, 145136), (152, 90710), (188, 73340), (190, 72568), (193, 71440), (235, 58672), (304, 45355), (376, 36670), (380, 36284), (386, 35720), (470, 29336), (752, 18335), (760, 18142), (772, 17860), (893, 15440), (940, 14668), (965, 14288), (1520, 9071), (1544, 8930), (1786, 7720), (1880, 7334), (1930, 7144), (3088, 4465), (3572, 3860), (3667, 3760)]