20168703920

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{50131}}^1$

素因数の和:50298

約数の個数: 80

約数和(自身を含む): 48338477568

約数和(自身を除く): 28169773648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 107, 188, 214, 235, 376, 428, 470, 535, 752, 856, 940, 1070, 1712, 1880, 2140, 3760, 4280, 5029, 8560, 10058, 20116, 25145, 40232, 50131, 50290, 80464, 100262, 100580, 200524, 201160, 250655, 401048, 402320, 501310, 802096, 1002620, 2005240, 2356157, 4010480, 4712314, 5364017, 9424628, 10728034, 11780785, 18849256, 21456068, 23561570, 26820085, 37698512, 42912136, 47123140, 53640170, 85824272, 94246280, 107280340, 188492560, 214560680, 252108799, 429121360, 504217598, 1008435196, 1260543995, 2016870392, 2521087990, 4033740784, 5042175980, 10084351960, 20168703920]

約数ペア:

[(1, 20168703920), (2, 10084351960), (4, 5042175980), (5, 4033740784), (8, 2521087990), (10, 2016870392), (16, 1260543995), (20, 1008435196), (40, 504217598), (47, 429121360), (80, 252108799), (94, 214560680), (107, 188492560), (188, 107280340), (214, 94246280), (235, 85824272), (376, 53640170), (428, 47123140), (470, 42912136), (535, 37698512), (752, 26820085), (856, 23561570), (940, 21456068), (1070, 18849256), (1712, 11780785), (1880, 10728034), (2140, 9424628), (3760, 5364017), (4280, 4712314), (5029, 4010480), (8560, 2356157), (10058, 2005240), (20116, 1002620), (25145, 802096), (40232, 501310), (50131, 402320), (50290, 401048), (80464, 250655), (100262, 201160), (100580, 200524)]