19359920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1741}}^1$

素因数の和:1893

約数の個数: 40

約数和(自身を含む): 45361680

約数和(自身を除く): 26001760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 1741, 2224, 2780, 3482, 5560, 6964, 8705, 11120, 13928, 17410, 27856, 34820, 69640, 139280, 241999, 483998, 967996, 1209995, 1935992, 2419990, 3871984, 4839980, 9679960, 19359920]

約数ペア:

[(1, 19359920), (2, 9679960), (4, 4839980), (5, 3871984), (8, 2419990), (10, 1935992), (16, 1209995), (20, 967996), (40, 483998), (80, 241999), (139, 139280), (278, 69640), (556, 34820), (695, 27856), (1112, 17410), (1390, 13928), (1741, 11120), (2224, 8705), (2780, 6964), (3482, 5560)]