208402545

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{56249}}^1$

素因数の和:56289

約数の個数: 32

約数和(自身を含む): 378000000

約数和(自身を除く): 169597455

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 56249, 168747, 281245, 731237, 843735, 1068731, 2193711, 3206193, 3656185, 5343655, 10968555, 13893503, 16030965, 41680509, 69467515, 208402545]

約数ペア:

[(1, 208402545), (3, 69467515), (5, 41680509), (13, 16030965), (15, 13893503), (19, 10968555), (39, 5343655), (57, 3656185), (65, 3206193), (95, 2193711), (195, 1068731), (247, 843735), (285, 731237), (741, 281245), (1235, 168747), (3705, 56249)]