257501872

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{16747}}^1$

素因数の和:16817

約数の個数: 30

約数和(自身を含む): 515553684

約数和(自身を除く): 258051812

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 961, 1922, 3844, 7688, 15376, 16747, 33494, 66988, 133976, 267952, 519157, 1038314, 2076628, 4153256, 8306512, 16093867, 32187734, 64375468, 128750936, 257501872]

約数ペア:

[(1, 257501872), (2, 128750936), (4, 64375468), (8, 32187734), (16, 16093867), (31, 8306512), (62, 4153256), (124, 2076628), (248, 1038314), (496, 519157), (961, 267952), (1922, 133976), (3844, 66988), (7688, 33494), (15376, 16747)]