209021125

素因数分解:

$5^3\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 284684400

約数和(自身を除く): 75663275

約数列:

[1, 5, 23, 25, 29, 109, 115, 125, 145, 529, 545, 575, 667, 725, 2507, 2645, 2725, 2875, 3161, 3335, 3625, 12535, 13225, 13625, 15341, 15805, 16675, 57661, 62675, 66125, 72703, 76705, 79025, 83375, 288305, 313375, 363515, 383525, 395125, 1441525, 1672169, 1817575, 1917625, 7207625, 8360845, 9087875, 41804225, 209021125]

約数ペア:

[(1, 209021125), (5, 41804225), (23, 9087875), (25, 8360845), (29, 7207625), (109, 1917625), (115, 1817575), (125, 1672169), (145, 1441525), (529, 395125), (545, 383525), (575, 363515), (667, 313375), (725, 288305), (2507, 83375), (2645, 79025), (2725, 76705), (2875, 72703), (3161, 66125), (3335, 62675), (3625, 57661), (12535, 16675), (13225, 15805), (13625, 15341)]