71579440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:350

約数の個数: 80

約数和(自身を含む): 172801440

約数和(自身を除く): 101222000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 139, 157, 164, 205, 278, 314, 328, 410, 556, 628, 656, 695, 785, 820, 1112, 1256, 1390, 1570, 1640, 2224, 2512, 2780, 3140, 3280, 5560, 5699, 6280, 6437, 11120, 11398, 12560, 12874, 21823, 22796, 25748, 28495, 32185, 43646, 45592, 51496, 56990, 64370, 87292, 91184, 102992, 109115, 113980, 128740, 174584, 218230, 227960, 257480, 349168, 436460, 455920, 514960, 872920, 894743, 1745840, 1789486, 3578972, 4473715, 7157944, 8947430, 14315888, 17894860, 35789720, 71579440]

約数ペア:

[(1, 71579440), (2, 35789720), (4, 17894860), (5, 14315888), (8, 8947430), (10, 7157944), (16, 4473715), (20, 3578972), (40, 1789486), (41, 1745840), (80, 894743), (82, 872920), (139, 514960), (157, 455920), (164, 436460), (205, 349168), (278, 257480), (314, 227960), (328, 218230), (410, 174584), (556, 128740), (628, 113980), (656, 109115), (695, 102992), (785, 91184), (820, 87292), (1112, 64370), (1256, 56990), (1390, 51496), (1570, 45592), (1640, 43646), (2224, 32185), (2512, 28495), (2780, 25748), (3140, 22796), (3280, 21823), (5560, 12874), (5699, 12560), (6280, 11398), (6437, 11120)]