256672

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:640

約数の個数: 24

約数和(自身を含む): 545076

約数和(自身を除く): 288404

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 617, 1234, 2468, 4936, 8021, 9872, 16042, 19744, 32084, 64168, 128336, 256672]

約数ペア:

[(1, 256672), (2, 128336), (4, 64168), (8, 32084), (13, 19744), (16, 16042), (26, 9872), (32, 8021), (52, 4936), (104, 2468), (208, 1234), (416, 617)]