258812944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1244293}}^1$

素因数の和:1244314

約数の個数: 20

約数和(自身を含む): 540023596

約数和(自身を除く): 281210652

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1244293, 2488586, 4977172, 9954344, 16175809, 19908688, 32351618, 64703236, 129406472, 258812944]

約数ペア:

[(1, 258812944), (2, 129406472), (4, 64703236), (8, 32351618), (13, 19908688), (16, 16175809), (26, 9954344), (52, 4977172), (104, 2488586), (208, 1244293)]