20537825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 32569344

約数和(自身を除く): 12031519

約数列:

[1, 5, 7, 11, 25, 35, 47, 55, 77, 175, 227, 235, 275, 329, 385, 517, 1135, 1175, 1589, 1645, 1925, 2497, 2585, 3619, 5675, 7945, 8225, 10669, 12485, 12925, 17479, 18095, 39725, 53345, 62425, 74683, 87395, 90475, 117359, 266725, 373415, 436975, 586795, 821513, 1867075, 2933975, 4107565, 20537825]

約数ペア:

[(1, 20537825), (5, 4107565), (7, 2933975), (11, 1867075), (25, 821513), (35, 586795), (47, 436975), (55, 373415), (77, 266725), (175, 117359), (227, 90475), (235, 87395), (275, 74683), (329, 62425), (385, 53345), (517, 39725), (1135, 18095), (1175, 17479), (1589, 12925), (1645, 12485), (1925, 10669), (2497, 8225), (2585, 7945), (3619, 5675)]