1904980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1237}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 4991616

約数和(自身を除く): 3086636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1237, 1540, 2474, 4948, 6185, 8659, 12370, 13607, 17318, 24740, 27214, 34636, 43295, 54428, 68035, 86590, 95249, 136070, 173180, 190498, 272140, 380996, 476245, 952490, 1904980]

約数ペア:

[(1, 1904980), (2, 952490), (4, 476245), (5, 380996), (7, 272140), (10, 190498), (11, 173180), (14, 136070), (20, 95249), (22, 86590), (28, 68035), (35, 54428), (44, 43295), (55, 34636), (70, 27214), (77, 24740), (110, 17318), (140, 13607), (154, 12370), (220, 8659), (308, 6185), (385, 4948), (770, 2474), (1237, 1540)]