81183520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:458

約数の個数: 96

約数和(自身を含む): 211196160

約数和(自身を除く): 130012640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 193, 220, 239, 352, 386, 440, 478, 772, 880, 956, 965, 1195, 1544, 1760, 1912, 1930, 2123, 2390, 2629, 3088, 3824, 3860, 4246, 4780, 5258, 6176, 7648, 7720, 8492, 9560, 10516, 10615, 13145, 15440, 16984, 19120, 21032, 21230, 26290, 30880, 33968, 38240, 42064, 42460, 46127, 52580, 67936, 84128, 84920, 92254, 105160, 169840, 184508, 210320, 230635, 339680, 369016, 420640, 461270, 507397, 738032, 922540, 1014794, 1476064, 1845080, 2029588, 2536985, 3690160, 4059176, 5073970, 7380320, 8118352, 10147940, 16236704, 20295880, 40591760, 81183520]

約数ペア:

[(1, 81183520), (2, 40591760), (4, 20295880), (5, 16236704), (8, 10147940), (10, 8118352), (11, 7380320), (16, 5073970), (20, 4059176), (22, 3690160), (32, 2536985), (40, 2029588), (44, 1845080), (55, 1476064), (80, 1014794), (88, 922540), (110, 738032), (160, 507397), (176, 461270), (193, 420640), (220, 369016), (239, 339680), (352, 230635), (386, 210320), (440, 184508), (478, 169840), (772, 105160), (880, 92254), (956, 84920), (965, 84128), (1195, 67936), (1544, 52580), (1760, 46127), (1912, 42460), (1930, 42064), (2123, 38240), (2390, 33968), (2629, 30880), (3088, 26290), (3824, 21230), (3860, 21032), (4246, 19120), (4780, 16984), (5258, 15440), (6176, 13145), (7648, 10615), (7720, 10516), (8492, 9560)]