31800440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{829}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 82468800

約数和(自身を除く): 50668360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 685, 829, 959, 1096, 1370, 1658, 1918, 2740, 3316, 3836, 4145, 4795, 5480, 5803, 6632, 7672, 8290, 9590, 11606, 16580, 19180, 23212, 29015, 33160, 38360, 46424, 58030, 113573, 116060, 227146, 232120, 454292, 567865, 795011, 908584, 1135730, 1590022, 2271460, 3180044, 3975055, 4542920, 6360088, 7950110, 15900220, 31800440]

約数ペア:

[(1, 31800440), (2, 15900220), (4, 7950110), (5, 6360088), (7, 4542920), (8, 3975055), (10, 3180044), (14, 2271460), (20, 1590022), (28, 1135730), (35, 908584), (40, 795011), (56, 567865), (70, 454292), (137, 232120), (140, 227146), (274, 116060), (280, 113573), (548, 58030), (685, 46424), (829, 38360), (959, 33160), (1096, 29015), (1370, 23212), (1658, 19180), (1918, 16580), (2740, 11606), (3316, 9590), (3836, 8290), (4145, 7672), (4795, 6632), (5480, 5803)]