2018478920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{5563}}^1$

素因数の和:5814

約数の個数: 64

約数和(自身を含む): 4663077120

約数和(自身を除く): 2644598200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 193, 235, 376, 386, 470, 772, 940, 965, 1544, 1880, 1930, 3860, 5563, 7720, 9071, 11126, 18142, 22252, 27815, 36284, 44504, 45355, 55630, 72568, 90710, 111260, 181420, 222520, 261461, 362840, 522922, 1045844, 1073659, 1307305, 2091688, 2147318, 2614610, 4294636, 5229220, 5368295, 8589272, 10458440, 10736590, 21473180, 42946360, 50461973, 100923946, 201847892, 252309865, 403695784, 504619730, 1009239460, 2018478920]

約数ペア:

[(1, 2018478920), (2, 1009239460), (4, 504619730), (5, 403695784), (8, 252309865), (10, 201847892), (20, 100923946), (40, 50461973), (47, 42946360), (94, 21473180), (188, 10736590), (193, 10458440), (235, 8589272), (376, 5368295), (386, 5229220), (470, 4294636), (772, 2614610), (940, 2147318), (965, 2091688), (1544, 1307305), (1880, 1073659), (1930, 1045844), (3860, 522922), (5563, 362840), (7720, 261461), (9071, 222520), (11126, 181420), (18142, 111260), (22252, 90710), (27815, 72568), (36284, 55630), (44504, 45355)]