18868172080

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1\times {\mathrm{2143}}^1$

素因数の和:3014

約数の個数: 80

約数和(自身を含む): 44231526144

約数和(自身を除く): 25363354064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 701, 785, 1256, 1402, 1570, 2143, 2512, 2804, 3140, 3505, 4286, 5608, 6280, 7010, 8572, 10715, 11216, 12560, 14020, 17144, 21430, 28040, 34288, 42860, 56080, 85720, 110057, 171440, 220114, 336451, 440228, 550285, 672902, 880456, 1100570, 1345804, 1502243, 1682255, 1760912, 2201140, 2691608, 3004486, 3364510, 4402280, 5383216, 6008972, 6729020, 7511215, 8804560, 12017944, 13458040, 15022430, 24035888, 26916080, 30044860, 60089720, 120179440, 235852151, 471704302, 943408604, 1179260755, 1886817208, 2358521510, 3773634416, 4717043020, 9434086040, 18868172080]

約数ペア:

[(1, 18868172080), (2, 9434086040), (4, 4717043020), (5, 3773634416), (8, 2358521510), (10, 1886817208), (16, 1179260755), (20, 943408604), (40, 471704302), (80, 235852151), (157, 120179440), (314, 60089720), (628, 30044860), (701, 26916080), (785, 24035888), (1256, 15022430), (1402, 13458040), (1570, 12017944), (2143, 8804560), (2512, 7511215), (2804, 6729020), (3140, 6008972), (3505, 5383216), (4286, 4402280), (5608, 3364510), (6280, 3004486), (7010, 2691608), (8572, 2201140), (10715, 1760912), (11216, 1682255), (12560, 1502243), (14020, 1345804), (17144, 1100570), (21430, 880456), (28040, 672902), (34288, 550285), (42860, 440228), (56080, 336451), (85720, 220114), (110057, 171440)]