19691080

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{811}}^1$

素因数の和:1429

約数の個数: 32

約数和(自身を含む): 44432640

約数和(自身を除く): 24741560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 811, 1214, 1622, 2428, 3035, 3244, 4055, 4856, 6070, 6488, 8110, 12140, 16220, 24280, 32440, 492277, 984554, 1969108, 2461385, 3938216, 4922770, 9845540, 19691080]

約数ペア:

[(1, 19691080), (2, 9845540), (4, 4922770), (5, 3938216), (8, 2461385), (10, 1969108), (20, 984554), (40, 492277), (607, 32440), (811, 24280), (1214, 16220), (1622, 12140), (2428, 8110), (3035, 6488), (3244, 6070), (4055, 4856)]