16805900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4099}}^1$

素因数の和:4154

約数の個数: 36

約数和(自身を含む): 37367400

約数和(自身を除く): 20561500

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4099, 4100, 8198, 16396, 20495, 40990, 81980, 102475, 168059, 204950, 336118, 409900, 672236, 840295, 1680590, 3361180, 4201475, 8402950, 16805900]

約数ペア:

[(1, 16805900), (2, 8402950), (4, 4201475), (5, 3361180), (10, 1680590), (20, 840295), (25, 672236), (41, 409900), (50, 336118), (82, 204950), (100, 168059), (164, 102475), (205, 81980), (410, 40990), (820, 20495), (1025, 16396), (2050, 8198), (4099, 4100)]