689331376

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{20743}}^1$

素因数の和:20849

約数の個数: 40

約数和(自身を含む): 1399307264

約数和(自身を除く): 709975888

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 1072, 2077, 4154, 8308, 16616, 20743, 33232, 41486, 82972, 165944, 331888, 643033, 1286066, 1389781, 2572132, 2779562, 5144264, 5559124, 10288528, 11118248, 22236496, 43083211, 86166422, 172332844, 344665688, 689331376]

約数ペア:

[(1, 689331376), (2, 344665688), (4, 172332844), (8, 86166422), (16, 43083211), (31, 22236496), (62, 11118248), (67, 10288528), (124, 5559124), (134, 5144264), (248, 2779562), (268, 2572132), (496, 1389781), (536, 1286066), (1072, 643033), (2077, 331888), (4154, 165944), (8308, 82972), (16616, 41486), (20743, 33232)]