778996820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{677}}^1\times {\mathrm{8219}}^1$

素因数の和:8912

約数の個数: 48

約数和(自身を含む): 1872581760

約数和(自身を除く): 1093584940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 677, 1354, 2708, 3385, 4739, 6770, 8219, 9478, 13540, 16438, 18956, 23695, 32876, 41095, 47390, 57533, 82190, 94780, 115066, 164380, 230132, 287665, 575330, 1150660, 5564263, 11128526, 22257052, 27821315, 38949841, 55642630, 77899682, 111285260, 155799364, 194749205, 389498410, 778996820]

約数ペア:

[(1, 778996820), (2, 389498410), (4, 194749205), (5, 155799364), (7, 111285260), (10, 77899682), (14, 55642630), (20, 38949841), (28, 27821315), (35, 22257052), (70, 11128526), (140, 5564263), (677, 1150660), (1354, 575330), (2708, 287665), (3385, 230132), (4739, 164380), (6770, 115066), (8219, 94780), (9478, 82190), (13540, 57533), (16438, 47390), (18956, 41095), (23695, 32876)]