1900647945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{140321}}^1$

素因数の和:140382

約数の個数: 48

約数和(自身を含む): 3852680832

約数和(自身を除く): 1952032887

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1505, 1935, 2709, 4515, 13545, 140321, 420963, 701605, 982247, 1262889, 2104815, 2946741, 4911235, 6033803, 6314445, 8840223, 14733705, 18101409, 30169015, 42236621, 44201115, 54304227, 90507045, 126709863, 211183105, 271521135, 380129589, 633549315, 1900647945]

約数ペア:

[(1, 1900647945), (3, 633549315), (5, 380129589), (7, 271521135), (9, 211183105), (15, 126709863), (21, 90507045), (35, 54304227), (43, 44201115), (45, 42236621), (63, 30169015), (105, 18101409), (129, 14733705), (215, 8840223), (301, 6314445), (315, 6033803), (387, 4911235), (645, 2946741), (903, 2104815), (1505, 1262889), (1935, 982247), (2709, 701605), (4515, 420963), (13545, 140321)]