12689500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 28435680

約数和(自身を除く): 15746180

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 619, 820, 1025, 1238, 2050, 2476, 3095, 4100, 5125, 6190, 10250, 12380, 15475, 20500, 25379, 30950, 50758, 61900, 77375, 101516, 126895, 154750, 253790, 309500, 507580, 634475, 1268950, 2537900, 3172375, 6344750, 12689500]

約数ペア:

[(1, 12689500), (2, 6344750), (4, 3172375), (5, 2537900), (10, 1268950), (20, 634475), (25, 507580), (41, 309500), (50, 253790), (82, 154750), (100, 126895), (125, 101516), (164, 77375), (205, 61900), (250, 50758), (410, 30950), (500, 25379), (619, 20500), (820, 15475), (1025, 12380), (1238, 10250), (2050, 6190), (2476, 5125), (3095, 4100)]