20299000

素因数分解:

$2^3\times 5^3\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 28223240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 125, 200, 212, 250, 265, 383, 424, 500, 530, 766, 1000, 1060, 1325, 1532, 1915, 2120, 2650, 3064, 3830, 5300, 6625, 7660, 9575, 10600, 13250, 15320, 19150, 20299, 26500, 38300, 40598, 47875, 53000, 76600, 81196, 95750, 101495, 162392, 191500, 202990, 383000, 405980, 507475, 811960, 1014950, 2029900, 2537375, 4059800, 5074750, 10149500, 20299000]

約数ペア:

[(1, 20299000), (2, 10149500), (4, 5074750), (5, 4059800), (8, 2537375), (10, 2029900), (20, 1014950), (25, 811960), (40, 507475), (50, 405980), (53, 383000), (100, 202990), (106, 191500), (125, 162392), (200, 101495), (212, 95750), (250, 81196), (265, 76600), (383, 53000), (424, 47875), (500, 40598), (530, 38300), (766, 26500), (1000, 20299), (1060, 19150), (1325, 15320), (1532, 13250), (1915, 10600), (2120, 9575), (2650, 7660), (3064, 6625), (3830, 5300)]