20340500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{2393}}^1$

素因数の和:2429

約数の個数: 48

約数和(自身を含む): 47056464

約数和(自身を除く): 26715964

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, 2393, 4250, 4786, 8500, 9572, 11965, 23930, 40681, 47860, 59825, 81362, 119650, 162724, 203405, 239300, 299125, 406810, 598250, 813620, 1017025, 1196500, 2034050, 4068100, 5085125, 10170250, 20340500]

約数ペア:

[(1, 20340500), (2, 10170250), (4, 5085125), (5, 4068100), (10, 2034050), (17, 1196500), (20, 1017025), (25, 813620), (34, 598250), (50, 406810), (68, 299125), (85, 239300), (100, 203405), (125, 162724), (170, 119650), (250, 81362), (340, 59825), (425, 47860), (500, 40681), (850, 23930), (1700, 11965), (2125, 9572), (2393, 8500), (4250, 4786)]