2001800515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{121727}}^1$

素因数の和:121779

約数の個数: 32

約数和(自身を含む): 2944843776

約数和(自身を除く): 943043261

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1495, 3289, 16445, 121727, 608635, 1338997, 1582451, 2799721, 6694985, 7912255, 13998605, 17406961, 30796931, 36396373, 87034805, 153984655, 181981865, 400360103, 2001800515]

約数ペア:

[(1, 2001800515), (5, 400360103), (11, 181981865), (13, 153984655), (23, 87034805), (55, 36396373), (65, 30796931), (115, 17406961), (143, 13998605), (253, 7912255), (299, 6694985), (715, 2799721), (1265, 1582451), (1495, 1338997), (3289, 608635), (16445, 121727)]