51980985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{571}}^1$

素因数の和:623

約数の個数: 72

約数和(自身を含む): 109576896

約数和(自身を除く): 57595911

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 289, 315, 357, 571, 595, 765, 867, 1071, 1445, 1713, 1785, 2023, 2601, 2855, 3997, 4335, 5139, 5355, 6069, 8565, 9707, 10115, 11991, 13005, 18207, 19985, 25695, 29121, 30345, 35973, 48535, 59955, 67949, 87363, 91035, 145605, 165019, 179865, 203847, 339745, 436815, 495057, 611541, 825095, 1019235, 1155133, 1485171, 2475285, 3057705, 3465399, 5775665, 7425855, 10396197, 17326995, 51980985]

約数ペア:

[(1, 51980985), (3, 17326995), (5, 10396197), (7, 7425855), (9, 5775665), (15, 3465399), (17, 3057705), (21, 2475285), (35, 1485171), (45, 1155133), (51, 1019235), (63, 825095), (85, 611541), (105, 495057), (119, 436815), (153, 339745), (255, 203847), (289, 179865), (315, 165019), (357, 145605), (571, 91035), (595, 87363), (765, 67949), (867, 59955), (1071, 48535), (1445, 35973), (1713, 30345), (1785, 29121), (2023, 25695), (2601, 19985), (2855, 18207), (3997, 13005), (4335, 11991), (5139, 10115), (5355, 9707), (6069, 8565)]