20164856

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2213}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 40649040

約数和(自身を除く): 20484184

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 268, 536, 1139, 2213, 2278, 4426, 4556, 8852, 9112, 17704, 37621, 75242, 148271, 150484, 296542, 300968, 593084, 1186168, 2520607, 5041214, 10082428, 20164856]

約数ペア:

[(1, 20164856), (2, 10082428), (4, 5041214), (8, 2520607), (17, 1186168), (34, 593084), (67, 300968), (68, 296542), (134, 150484), (136, 148271), (268, 75242), (536, 37621), (1139, 17704), (2213, 9112), (2278, 8852), (4426, 4556)]