74686640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{677}}^1$

素因数の和:894

約数の個数: 80

約数和(自身を含む): 199755072

約数和(自身を除く): 125068432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 677, 788, 985, 1354, 1379, 1576, 1970, 2708, 2758, 3152, 3385, 3940, 4739, 5416, 5516, 6770, 6895, 7880, 9478, 10832, 11032, 13540, 13790, 15760, 18956, 22064, 23695, 27080, 27580, 37912, 47390, 54160, 55160, 75824, 94780, 110320, 133369, 189560, 266738, 379120, 533476, 666845, 933583, 1066952, 1333690, 1867166, 2133904, 2667380, 3734332, 4667915, 5334760, 7468664, 9335830, 10669520, 14937328, 18671660, 37343320, 74686640]

約数ペア:

[(1, 74686640), (2, 37343320), (4, 18671660), (5, 14937328), (7, 10669520), (8, 9335830), (10, 7468664), (14, 5334760), (16, 4667915), (20, 3734332), (28, 2667380), (35, 2133904), (40, 1867166), (56, 1333690), (70, 1066952), (80, 933583), (112, 666845), (140, 533476), (197, 379120), (280, 266738), (394, 189560), (560, 133369), (677, 110320), (788, 94780), (985, 75824), (1354, 55160), (1379, 54160), (1576, 47390), (1970, 37912), (2708, 27580), (2758, 27080), (3152, 23695), (3385, 22064), (3940, 18956), (4739, 15760), (5416, 13790), (5516, 13540), (6770, 11032), (6895, 10832), (7880, 9478)]