50399000

素因数分解:

$2^3\times 5^3\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 119340000

約数和(自身を除く): 68941000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 125, 200, 202, 250, 404, 499, 500, 505, 808, 998, 1000, 1010, 1996, 2020, 2495, 2525, 3992, 4040, 4990, 5050, 9980, 10100, 12475, 12625, 19960, 20200, 24950, 25250, 49900, 50399, 50500, 62375, 99800, 100798, 101000, 124750, 201596, 249500, 251995, 403192, 499000, 503990, 1007980, 1259975, 2015960, 2519950, 5039900, 6299875, 10079800, 12599750, 25199500, 50399000]

約数ペア:

[(1, 50399000), (2, 25199500), (4, 12599750), (5, 10079800), (8, 6299875), (10, 5039900), (20, 2519950), (25, 2015960), (40, 1259975), (50, 1007980), (100, 503990), (101, 499000), (125, 403192), (200, 251995), (202, 249500), (250, 201596), (404, 124750), (499, 101000), (500, 100798), (505, 99800), (808, 62375), (998, 50500), (1000, 50399), (1010, 49900), (1996, 25250), (2020, 24950), (2495, 20200), (2525, 19960), (3992, 12625), (4040, 12475), (4990, 10100), (5050, 9980)]