20138650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{353}}^1$

素因数の和:535

約数の個数: 48

約数和(自身を含む): 43193664

約数和(自身を除く): 23055014

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 163, 175, 326, 350, 353, 706, 815, 1141, 1630, 1765, 2282, 2471, 3530, 4075, 4942, 5705, 8150, 8825, 11410, 12355, 17650, 24710, 28525, 57050, 57539, 61775, 115078, 123550, 287695, 402773, 575390, 805546, 1438475, 2013865, 2876950, 4027730, 10069325, 20138650]

約数ペア:

[(1, 20138650), (2, 10069325), (5, 4027730), (7, 2876950), (10, 2013865), (14, 1438475), (25, 805546), (35, 575390), (50, 402773), (70, 287695), (163, 123550), (175, 115078), (326, 61775), (350, 57539), (353, 57050), (706, 28525), (815, 24710), (1141, 17650), (1630, 12355), (1765, 11410), (2282, 8825), (2471, 8150), (3530, 5705), (4075, 4942)]