66718480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20341}}^1$

素因数の和:20395

約数の個数: 40

約数和(自身を含む): 158911704

約数和(自身を除く): 92193224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 20341, 40682, 81364, 101705, 162728, 203410, 325456, 406820, 813640, 833981, 1627280, 1667962, 3335924, 4169905, 6671848, 8339810, 13343696, 16679620, 33359240, 66718480]

約数ペア:

[(1, 66718480), (2, 33359240), (4, 16679620), (5, 13343696), (8, 8339810), (10, 6671848), (16, 4169905), (20, 3335924), (40, 1667962), (41, 1627280), (80, 833981), (82, 813640), (164, 406820), (205, 325456), (328, 203410), (410, 162728), (656, 101705), (820, 81364), (1640, 40682), (3280, 20341)]