20161331288

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{761}}^1\times {\mathrm{1637}}^1$

素因数の和:2445

約数の個数: 96

約数和(自身を含む): 45982067040

約数和(自身を除く): 25820735752

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 761, 952, 1156, 1522, 1637, 2023, 2312, 3044, 3274, 4046, 5327, 6088, 6548, 8092, 10654, 11459, 12937, 13096, 16184, 21308, 22918, 25874, 27829, 42616, 45836, 51748, 55658, 90559, 91672, 103496, 111316, 181118, 194803, 219929, 222632, 362236, 389606, 439858, 473093, 724472, 779212, 879716, 946186, 1245757, 1539503, 1558424, 1759432, 1892372, 2491514, 3079006, 3311651, 3784744, 4983028, 6158012, 6623302, 8720299, 9966056, 12316024, 13246604, 17440598, 21177869, 26493208, 34881196, 42355738, 69762392, 84711476, 148245083, 169422952, 296490166, 360023773, 592980332, 720047546, 1185960664, 1440095092, 2520166411, 2880190184, 5040332822, 10080665644, 20161331288]

約数ペア:

[(1, 20161331288), (2, 10080665644), (4, 5040332822), (7, 2880190184), (8, 2520166411), (14, 1440095092), (17, 1185960664), (28, 720047546), (34, 592980332), (56, 360023773), (68, 296490166), (119, 169422952), (136, 148245083), (238, 84711476), (289, 69762392), (476, 42355738), (578, 34881196), (761, 26493208), (952, 21177869), (1156, 17440598), (1522, 13246604), (1637, 12316024), (2023, 9966056), (2312, 8720299), (3044, 6623302), (3274, 6158012), (4046, 4983028), (5327, 3784744), (6088, 3311651), (6548, 3079006), (8092, 2491514), (10654, 1892372), (11459, 1759432), (12937, 1558424), (13096, 1539503), (16184, 1245757), (21308, 946186), (22918, 879716), (25874, 779212), (27829, 724472), (42616, 473093), (45836, 439858), (51748, 389606), (55658, 362236), (90559, 222632), (91672, 219929), (103496, 194803), (111316, 181118)]