20453560

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2293}}^1$

素因数の和:2527

約数の個数: 32

約数和(自身を含む): 46247040

約数和(自身を除く): 25793480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 2293, 4460, 4586, 8920, 9172, 11465, 18344, 22930, 45860, 91720, 511339, 1022678, 2045356, 2556695, 4090712, 5113390, 10226780, 20453560]

約数ペア:

[(1, 20453560), (2, 10226780), (4, 5113390), (5, 4090712), (8, 2556695), (10, 2045356), (20, 1022678), (40, 511339), (223, 91720), (446, 45860), (892, 22930), (1115, 18344), (1784, 11465), (2230, 9172), (2293, 8920), (4460, 4586)]