20969500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{2467}}^1$

素因数の和:2503

約数の個数: 48

約数和(自身を含む): 48511008

約数和(自身を除く): 27541508

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 500, 850, 1700, 2125, 2467, 4250, 4934, 8500, 9868, 12335, 24670, 41939, 49340, 61675, 83878, 123350, 167756, 209695, 246700, 308375, 419390, 616750, 838780, 1048475, 1233500, 2096950, 4193900, 5242375, 10484750, 20969500]

約数ペア:

[(1, 20969500), (2, 10484750), (4, 5242375), (5, 4193900), (10, 2096950), (17, 1233500), (20, 1048475), (25, 838780), (34, 616750), (50, 419390), (68, 308375), (85, 246700), (100, 209695), (125, 167756), (170, 123350), (250, 83878), (340, 61675), (425, 49340), (500, 41939), (850, 24670), (1700, 12335), (2125, 9868), (2467, 8500), (4250, 4934)]