813845616280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{3160811}}^1$

素因数の和:3161020

約数の個数: 64

約数和(自身を含む): 1887763358880

約数和(自身を除く): 1073917742600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 157, 164, 205, 314, 328, 410, 628, 785, 820, 1256, 1570, 1640, 3140, 6280, 6437, 12874, 25748, 32185, 51496, 64370, 128740, 257480, 3160811, 6321622, 12643244, 15804055, 25286488, 31608110, 63216220, 126432440, 129593251, 259186502, 496247327, 518373004, 647966255, 992494654, 1036746008, 1295932510, 1984989308, 2481236635, 2591865020, 3969978616, 4962473270, 5183730040, 9924946540, 19849893080, 20346140407, 40692280814, 81384561628, 101730702035, 162769123256, 203461404070, 406922808140, 813845616280]

約数ペア:

[(1, 813845616280), (2, 406922808140), (4, 203461404070), (5, 162769123256), (8, 101730702035), (10, 81384561628), (20, 40692280814), (40, 20346140407), (41, 19849893080), (82, 9924946540), (157, 5183730040), (164, 4962473270), (205, 3969978616), (314, 2591865020), (328, 2481236635), (410, 1984989308), (628, 1295932510), (785, 1036746008), (820, 992494654), (1256, 647966255), (1570, 518373004), (1640, 496247327), (3140, 259186502), (6280, 129593251), (6437, 126432440), (12874, 63216220), (25748, 31608110), (32185, 25286488), (51496, 15804055), (64370, 12643244), (128740, 6321622), (257480, 3160811)]