31281440

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1013}}^1$

素因数の和:1221

約数の個数: 48

約数和(自身を含む): 74358648

約数和(自身を除く): 43077208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 386, 772, 965, 1013, 1544, 1930, 2026, 3088, 3860, 4052, 5065, 6176, 7720, 8104, 10130, 15440, 16208, 20260, 30880, 32416, 40520, 81040, 162080, 195509, 391018, 782036, 977545, 1564072, 1955090, 3128144, 3910180, 6256288, 7820360, 15640720, 31281440]

約数ペア:

[(1, 31281440), (2, 15640720), (4, 7820360), (5, 6256288), (8, 3910180), (10, 3128144), (16, 1955090), (20, 1564072), (32, 977545), (40, 782036), (80, 391018), (160, 195509), (193, 162080), (386, 81040), (772, 40520), (965, 32416), (1013, 30880), (1544, 20260), (1930, 16208), (2026, 15440), (3088, 10130), (3860, 8104), (4052, 7720), (5065, 6176)]