19245560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 45878400

約数和(自身を除く): 26632840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 353, 376, 470, 580, 706, 940, 1160, 1363, 1412, 1765, 1880, 2726, 2824, 3530, 5452, 6815, 7060, 10237, 10904, 13630, 14120, 16591, 20474, 27260, 33182, 40948, 51185, 54520, 66364, 81896, 82955, 102370, 132728, 165910, 204740, 331820, 409480, 481139, 663640, 962278, 1924556, 2405695, 3849112, 4811390, 9622780, 19245560]

約数ペア:

[(1, 19245560), (2, 9622780), (4, 4811390), (5, 3849112), (8, 2405695), (10, 1924556), (20, 962278), (29, 663640), (40, 481139), (47, 409480), (58, 331820), (94, 204740), (116, 165910), (145, 132728), (188, 102370), (232, 82955), (235, 81896), (290, 66364), (353, 54520), (376, 51185), (470, 40948), (580, 33182), (706, 27260), (940, 20474), (1160, 16591), (1363, 14120), (1412, 13630), (1765, 10904), (1880, 10237), (2726, 7060), (2824, 6815), (3530, 5452)]