16981100

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{3613}}^1$

素因数の和:3674

約数の個数: 36

約数和(自身を含む): 37643424

約数和(自身を除く): 20662324

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 470, 940, 1175, 2350, 3613, 4700, 7226, 14452, 18065, 36130, 72260, 90325, 169811, 180650, 339622, 361300, 679244, 849055, 1698110, 3396220, 4245275, 8490550, 16981100]

約数ペア:

[(1, 16981100), (2, 8490550), (4, 4245275), (5, 3396220), (10, 1698110), (20, 849055), (25, 679244), (47, 361300), (50, 339622), (94, 180650), (100, 169811), (188, 90325), (235, 72260), (470, 36130), (940, 18065), (1175, 14452), (2350, 7226), (3613, 4700)]