20749430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{827}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 40479264

約数和(自身を除く): 19729834

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 193, 386, 827, 965, 1654, 1930, 2509, 4135, 5018, 8270, 10751, 12545, 21502, 25090, 53755, 107510, 159611, 319222, 798055, 1596110, 2074943, 4149886, 10374715, 20749430]

約数ペア:

[(1, 20749430), (2, 10374715), (5, 4149886), (10, 2074943), (13, 1596110), (26, 798055), (65, 319222), (130, 159611), (193, 107510), (386, 53755), (827, 25090), (965, 21502), (1654, 12545), (1930, 10751), (2509, 8270), (4135, 5018)]