20128952

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1663}}^1$

素因数の和:1775

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 20306248

約数列:

[1, 2, 4, 8, 17, 34, 68, 89, 136, 178, 356, 712, 1513, 1663, 3026, 3326, 6052, 6652, 12104, 13304, 28271, 56542, 113084, 148007, 226168, 296014, 592028, 1184056, 2516119, 5032238, 10064476, 20128952]

約数ペア:

[(1, 20128952), (2, 10064476), (4, 5032238), (8, 2516119), (17, 1184056), (34, 592028), (68, 296014), (89, 226168), (136, 148007), (178, 113084), (356, 56542), (712, 28271), (1513, 13304), (1663, 12104), (3026, 6652), (3326, 6052)]