981552208

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1373}}^1$

素因数の和:1892

約数の個数: 80

約数和(自身を含む): 2347099776

約数和(自身を除く): 1365547568

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 491, 728, 982, 1373, 1456, 1964, 2746, 3437, 3928, 5492, 6383, 6874, 7856, 9611, 10984, 12766, 13748, 17849, 19222, 21968, 25532, 27496, 35698, 38444, 44681, 51064, 54992, 71396, 76888, 89362, 102128, 124943, 142792, 153776, 178724, 249886, 285584, 357448, 499772, 674143, 714896, 999544, 1348286, 1999088, 2696572, 4719001, 5393144, 8763859, 9438002, 10786288, 17527718, 18876004, 35055436, 37752008, 61347013, 70110872, 75504016, 122694026, 140221744, 245388052, 490776104, 981552208]

約数ペア:

[(1, 981552208), (2, 490776104), (4, 245388052), (7, 140221744), (8, 122694026), (13, 75504016), (14, 70110872), (16, 61347013), (26, 37752008), (28, 35055436), (52, 18876004), (56, 17527718), (91, 10786288), (104, 9438002), (112, 8763859), (182, 5393144), (208, 4719001), (364, 2696572), (491, 1999088), (728, 1348286), (982, 999544), (1373, 714896), (1456, 674143), (1964, 499772), (2746, 357448), (3437, 285584), (3928, 249886), (5492, 178724), (6383, 153776), (6874, 142792), (7856, 124943), (9611, 102128), (10984, 89362), (12766, 76888), (13748, 71396), (17849, 54992), (19222, 51064), (21968, 44681), (25532, 38444), (27496, 35698)]