198697808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{499}}^1\times {\mathrm{607}}^1$

素因数の和:1155

約数の個数: 40

約数和(自身を含む): 395808000

約数和(自身を除く): 197110192

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 499, 607, 656, 998, 1214, 1996, 2428, 3992, 4856, 7984, 9712, 20459, 24887, 40918, 49774, 81836, 99548, 163672, 199096, 302893, 327344, 398192, 605786, 1211572, 2423144, 4846288, 12418613, 24837226, 49674452, 99348904, 198697808]

約数ペア:

[(1, 198697808), (2, 99348904), (4, 49674452), (8, 24837226), (16, 12418613), (41, 4846288), (82, 2423144), (164, 1211572), (328, 605786), (499, 398192), (607, 327344), (656, 302893), (998, 199096), (1214, 163672), (1996, 99548), (2428, 81836), (3992, 49774), (4856, 40918), (7984, 24887), (9712, 20459)]