200016640

素因数分解:

$2^8\times 5^1\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 481607280

約数和(自身を除く): 281590640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 307, 320, 509, 614, 640, 1018, 1228, 1280, 1535, 2036, 2456, 2545, 3070, 4072, 4912, 5090, 6140, 8144, 9824, 10180, 12280, 16288, 19648, 20360, 24560, 32576, 39296, 40720, 49120, 65152, 78592, 81440, 98240, 130304, 156263, 162880, 196480, 312526, 325760, 392960, 625052, 651520, 781315, 1250104, 1562630, 2500208, 3125260, 5000416, 6250520, 10000832, 12501040, 20001664, 25002080, 40003328, 50004160, 100008320, 200016640]

約数ペア:

[(1, 200016640), (2, 100008320), (4, 50004160), (5, 40003328), (8, 25002080), (10, 20001664), (16, 12501040), (20, 10000832), (32, 6250520), (40, 5000416), (64, 3125260), (80, 2500208), (128, 1562630), (160, 1250104), (256, 781315), (307, 651520), (320, 625052), (509, 392960), (614, 325760), (640, 312526), (1018, 196480), (1228, 162880), (1280, 156263), (1535, 130304), (2036, 98240), (2456, 81440), (2545, 78592), (3070, 65152), (4072, 49120), (4912, 40720), (5090, 39296), (6140, 32576), (8144, 24560), (9824, 20360), (10180, 19648), (12280, 16288)]