217966690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:619

約数の個数: 48

約数和(自身を含む): 419976000

約数和(自身を除く): 202009310

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 199, 289, 379, 398, 578, 758, 995, 1445, 1895, 1990, 2890, 3383, 3790, 6443, 6766, 12886, 16915, 32215, 33830, 57511, 64430, 75421, 109531, 115022, 150842, 219062, 287555, 377105, 547655, 575110, 754210, 1095310, 1282157, 2564314, 6410785, 12821570, 21796669, 43593338, 108983345, 217966690]

約数ペア:

[(1, 217966690), (2, 108983345), (5, 43593338), (10, 21796669), (17, 12821570), (34, 6410785), (85, 2564314), (170, 1282157), (199, 1095310), (289, 754210), (379, 575110), (398, 547655), (578, 377105), (758, 287555), (995, 219062), (1445, 150842), (1895, 115022), (1990, 109531), (2890, 75421), (3383, 64430), (3790, 57511), (6443, 33830), (6766, 32215), (12886, 16915)]