20878844185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{20921}}^1$

素因数の和:21201

約数の個数: 32

約数和(自身を含む): 27114912000

約数和(自身を除く): 6236067815

約数列:

[1, 5, 17, 59, 85, 199, 295, 995, 1003, 3383, 5015, 11741, 16915, 20921, 58705, 104605, 199597, 355657, 997985, 1234339, 1778285, 4163279, 6171695, 20816395, 20983763, 70775743, 104918815, 245633461, 353878715, 1228167305, 4175768837, 20878844185]

約数ペア:

[(1, 20878844185), (5, 4175768837), (17, 1228167305), (59, 353878715), (85, 245633461), (199, 104918815), (295, 70775743), (995, 20983763), (1003, 20816395), (3383, 6171695), (5015, 4163279), (11741, 1778285), (16915, 1234339), (20921, 997985), (58705, 355657), (104605, 199597)]