20674675

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 31363072

約数和(自身を除く): 10688397

約数列:

[1, 5, 7, 25, 31, 35, 37, 103, 155, 175, 185, 217, 259, 515, 721, 775, 925, 1085, 1147, 1295, 2575, 3193, 3605, 3811, 5425, 5735, 6475, 8029, 15965, 18025, 19055, 22351, 26677, 28675, 40145, 79825, 95275, 111755, 118141, 133385, 200725, 558775, 590705, 666925, 826987, 2953525, 4134935, 20674675]

約数ペア:

[(1, 20674675), (5, 4134935), (7, 2953525), (25, 826987), (31, 666925), (35, 590705), (37, 558775), (103, 200725), (155, 133385), (175, 118141), (185, 111755), (217, 95275), (259, 79825), (515, 40145), (721, 28675), (775, 26677), (925, 22351), (1085, 19055), (1147, 18025), (1295, 15965), (2575, 8029), (3193, 6475), (3605, 5735), (3811, 5425)]