20572040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30253}}^1$

素因数の和:30281

約数の個数: 32

約数和(自身を含む): 49011480

約数和(自身を除く): 28439440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30253, 60506, 121012, 151265, 242024, 302530, 514301, 605060, 1028602, 1210120, 2057204, 2571505, 4114408, 5143010, 10286020, 20572040]

約数ペア:

[(1, 20572040), (2, 10286020), (4, 5143010), (5, 4114408), (8, 2571505), (10, 2057204), (17, 1210120), (20, 1028602), (34, 605060), (40, 514301), (68, 302530), (85, 242024), (136, 151265), (170, 121012), (340, 60506), (680, 30253)]