205716920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{70451}}^1$

素因数の和:70535

約数の個数: 32

約数和(自身を含む): 469210320

約数和(自身を除く): 263493400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 70451, 140902, 281804, 352255, 563608, 704510, 1409020, 2818040, 5142923, 10285846, 20571692, 25714615, 41143384, 51429230, 102858460, 205716920]

約数ペア:

[(1, 205716920), (2, 102858460), (4, 51429230), (5, 41143384), (8, 25714615), (10, 20571692), (20, 10285846), (40, 5142923), (73, 2818040), (146, 1409020), (292, 704510), (365, 563608), (584, 352255), (730, 281804), (1460, 140902), (2920, 70451)]