256148936

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{3529}}^1$

素因数の和:3789

約数の個数: 32

約数和(自身を含む): 493917600

約数和(自身を除く): 237768664

約数列:

[1, 2, 4, 8, 43, 86, 172, 211, 344, 422, 844, 1688, 3529, 7058, 9073, 14116, 18146, 28232, 36292, 72584, 151747, 303494, 606988, 744619, 1213976, 1489238, 2978476, 5956952, 32018617, 64037234, 128074468, 256148936]

約数ペア:

[(1, 256148936), (2, 128074468), (4, 64037234), (8, 32018617), (43, 5956952), (86, 2978476), (172, 1489238), (211, 1213976), (344, 744619), (422, 606988), (844, 303494), (1688, 151747), (3529, 72584), (7058, 36292), (9073, 28232), (14116, 18146)]