20030120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45523}}^1$

素因数の和:45545

約数の個数: 32

約数和(自身を含む): 49165920

約数和(自身を除く): 29135800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45523, 91046, 182092, 227615, 364184, 455230, 500753, 910460, 1001506, 1820920, 2003012, 2503765, 4006024, 5007530, 10015060, 20030120]

約数ペア:

[(1, 20030120), (2, 10015060), (4, 5007530), (5, 4006024), (8, 2503765), (10, 2003012), (11, 1820920), (20, 1001506), (22, 910460), (40, 500753), (44, 455230), (55, 364184), (88, 227615), (110, 182092), (220, 91046), (440, 45523)]