19731400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7589}}^1$

素因数の和:7618

約数の個数: 48

約数和(自身を含む): 49410900

約数和(自身を除く): 29679500

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, 7589, 15178, 30356, 37945, 60712, 75890, 98657, 151780, 189725, 197314, 303560, 379450, 394628, 493285, 758900, 789256, 986570, 1517800, 1973140, 2466425, 3946280, 4932850, 9865700, 19731400]

約数ペア:

[(1, 19731400), (2, 9865700), (4, 4932850), (5, 3946280), (8, 2466425), (10, 1973140), (13, 1517800), (20, 986570), (25, 789256), (26, 758900), (40, 493285), (50, 394628), (52, 379450), (65, 303560), (100, 197314), (104, 189725), (130, 151780), (200, 98657), (260, 75890), (325, 60712), (520, 37945), (650, 30356), (1300, 15178), (2600, 7589)]