28320020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26717}}^1$

素因数の和:26779

約数の個数: 24

約数和(自身を含む): 60596424

約数和(自身を除く): 32276404

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 26717, 53434, 106868, 133585, 267170, 534340, 1416001, 2832002, 5664004, 7080005, 14160010, 28320020]

約数ペア:

[(1, 28320020), (2, 14160010), (4, 7080005), (5, 5664004), (10, 2832002), (20, 1416001), (53, 534340), (106, 267170), (212, 133585), (265, 106868), (530, 53434), (1060, 26717)]