399998512

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{257731}}^1$

素因数の和:257836

約数の個数: 20

約数和(自身を含む): 782989816

約数和(自身を除く): 382991304

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 257731, 515462, 1030924, 2061848, 4123696, 24999907, 49999814, 99999628, 199999256, 399998512]

約数ペア:

[(1, 399998512), (2, 199999256), (4, 99999628), (8, 49999814), (16, 24999907), (97, 4123696), (194, 2061848), (388, 1030924), (776, 515462), (1552, 257731)]