20289220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6301}}^1$

素因数の和:6340

約数の個数: 48

約数和(自身を含む): 50819328

約数和(自身を除く): 30530108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6301, 12602, 25204, 31505, 44107, 63010, 88214, 126020, 144923, 176428, 220535, 289846, 441070, 579692, 724615, 882140, 1014461, 1449230, 2028922, 2898460, 4057844, 5072305, 10144610, 20289220]

約数ペア:

[(1, 20289220), (2, 10144610), (4, 5072305), (5, 4057844), (7, 2898460), (10, 2028922), (14, 1449230), (20, 1014461), (23, 882140), (28, 724615), (35, 579692), (46, 441070), (70, 289846), (92, 220535), (115, 176428), (140, 144923), (161, 126020), (230, 88214), (322, 63010), (460, 44107), (644, 31505), (805, 25204), (1610, 12602), (3220, 6301)]