210025520

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{5039}}^1$

素因数の和:5573

約数の個数: 40

約数和(自身を含む): 489343680

約数和(自身を除く): 279318160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 2084, 2605, 4168, 5039, 5210, 8336, 10078, 10420, 20156, 20840, 25195, 40312, 41680, 50390, 80624, 100780, 201560, 403120, 2625319, 5250638, 10501276, 13126595, 21002552, 26253190, 42005104, 52506380, 105012760, 210025520]

約数ペア:

[(1, 210025520), (2, 105012760), (4, 52506380), (5, 42005104), (8, 26253190), (10, 21002552), (16, 13126595), (20, 10501276), (40, 5250638), (80, 2625319), (521, 403120), (1042, 201560), (2084, 100780), (2605, 80624), (4168, 50390), (5039, 41680), (5210, 40312), (8336, 25195), (10078, 20840), (10420, 20156)]