20849650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1291}}^1$

素因数の和:1339

約数の個数: 48

約数和(自身を含む): 43256160

約数和(自身を除く): 22406510

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 170, 190, 323, 425, 475, 646, 850, 950, 1291, 1615, 2582, 3230, 6455, 8075, 12910, 16150, 21947, 24529, 32275, 43894, 49058, 64550, 109735, 122645, 219470, 245290, 416993, 548675, 613225, 833986, 1097350, 1226450, 2084965, 4169930, 10424825, 20849650]

約数ペア:

[(1, 20849650), (2, 10424825), (5, 4169930), (10, 2084965), (17, 1226450), (19, 1097350), (25, 833986), (34, 613225), (38, 548675), (50, 416993), (85, 245290), (95, 219470), (170, 122645), (190, 109735), (323, 64550), (425, 49058), (475, 43894), (646, 32275), (850, 24529), (950, 21947), (1291, 16150), (1615, 12910), (2582, 8075), (3230, 6455)]