206813875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 267284160

約数和(自身を除く): 60470285

約数列:

[1, 5, 25, 43, 109, 125, 215, 353, 545, 1075, 1765, 2725, 4687, 5375, 8825, 13625, 15179, 23435, 38477, 44125, 75895, 117175, 192385, 379475, 585875, 961925, 1654511, 1897375, 4809625, 8272555, 41362775, 206813875]

約数ペア:

[(1, 206813875), (5, 41362775), (25, 8272555), (43, 4809625), (109, 1897375), (125, 1654511), (215, 961925), (353, 585875), (545, 379475), (1075, 192385), (1765, 117175), (2725, 75895), (4687, 44125), (5375, 38477), (8825, 23435), (13625, 15179)]