20340740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6317}}^1$

素因数の和:6356

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 30607612

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, 6317, 12634, 25268, 31585, 44219, 63170, 88438, 126340, 145291, 176876, 221095, 290582, 442190, 581164, 726455, 884380, 1017037, 1452910, 2034074, 2905820, 4068148, 5085185, 10170370, 20340740]

約数ペア:

[(1, 20340740), (2, 10170370), (4, 5085185), (5, 4068148), (7, 2905820), (10, 2034074), (14, 1452910), (20, 1017037), (23, 884380), (28, 726455), (35, 581164), (46, 442190), (70, 290582), (92, 221095), (115, 176876), (140, 145291), (161, 126340), (230, 88438), (322, 63170), (460, 44219), (644, 31585), (805, 25268), (1610, 12634), (3220, 6317)]