20251400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7789}}^1$

素因数の和:7818

約数の個数: 48

約数和(自身を含む): 50712900

約数和(自身を除く): 30461500

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7789, 15578, 31156, 38945, 62312, 77890, 101257, 155780, 194725, 202514, 311560, 389450, 405028, 506285, 778900, 810056, 1012570, 1557800, 2025140, 2531425, 4050280, 5062850, 10125700, 20251400]

約数ペア:

[(1, 20251400), (2, 10125700), (4, 5062850), (5, 4050280), (8, 2531425), (10, 2025140), (13, 1557800), (20, 1012570), (25, 810056), (26, 778900), (40, 506285), (50, 405028), (52, 389450), (65, 311560), (100, 202514), (104, 194725), (130, 155780), (200, 101257), (260, 77890), (325, 62312), (520, 38945), (650, 31156), (1300, 15578), (2600, 7789)]