80996840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{383}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 194088960

約数和(自身を除く): 113092120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 311, 340, 383, 622, 680, 766, 1244, 1532, 1555, 1915, 2488, 3064, 3110, 3830, 5287, 6220, 6511, 7660, 10574, 12440, 13022, 15320, 21148, 26044, 26435, 32555, 42296, 52088, 52870, 65110, 105740, 119113, 130220, 211480, 238226, 260440, 476452, 595565, 952904, 1191130, 2024921, 2382260, 4049842, 4764520, 8099684, 10124605, 16199368, 20249210, 40498420, 80996840]

約数ペア:

[(1, 80996840), (2, 40498420), (4, 20249210), (5, 16199368), (8, 10124605), (10, 8099684), (17, 4764520), (20, 4049842), (34, 2382260), (40, 2024921), (68, 1191130), (85, 952904), (136, 595565), (170, 476452), (311, 260440), (340, 238226), (383, 211480), (622, 130220), (680, 119113), (766, 105740), (1244, 65110), (1532, 52870), (1555, 52088), (1915, 42296), (2488, 32555), (3064, 26435), (3110, 26044), (3830, 21148), (5287, 15320), (6220, 13022), (6511, 12440), (7660, 10574)]