680178884

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{20639}}^1$

素因数の和:20768

約数の個数: 48

約数和(自身を含む): 1497968640

約数和(自身を除く): 817789756

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 107, 154, 214, 308, 428, 749, 1177, 1498, 2354, 2996, 4708, 8239, 16478, 20639, 32956, 41278, 82556, 144473, 227029, 288946, 454058, 577892, 908116, 1589203, 2208373, 3178406, 4416746, 6356812, 8833492, 15458611, 24292103, 30917222, 48584206, 61834444, 97168412, 170044721, 340089442, 680178884]

約数ペア:

[(1, 680178884), (2, 340089442), (4, 170044721), (7, 97168412), (11, 61834444), (14, 48584206), (22, 30917222), (28, 24292103), (44, 15458611), (77, 8833492), (107, 6356812), (154, 4416746), (214, 3178406), (308, 2208373), (428, 1589203), (749, 908116), (1177, 577892), (1498, 454058), (2354, 288946), (2996, 227029), (4708, 144473), (8239, 82556), (16478, 41278), (20639, 32956)]