39979690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1549}}^1$

素因数の和:1674

約数の個数: 32

約数和(自身を含む): 75330000

約数和(自身を除く): 35350310

約数列:

[1, 2, 5, 10, 29, 58, 89, 145, 178, 290, 445, 890, 1549, 2581, 3098, 5162, 7745, 12905, 15490, 25810, 44921, 89842, 137861, 224605, 275722, 449210, 689305, 1378610, 3997969, 7995938, 19989845, 39979690]

約数ペア:

[(1, 39979690), (2, 19989845), (5, 7995938), (10, 3997969), (29, 1378610), (58, 689305), (89, 449210), (145, 275722), (178, 224605), (290, 137861), (445, 89842), (890, 44921), (1549, 25810), (2581, 15490), (3098, 12905), (5162, 7745)]