257393908

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{20357}}^1$

素因数の和:20499

約数の個数: 24

約数和(自身を含む): 470269800

約数和(自身を除く): 212875892

約数列:

[1, 2, 4, 29, 58, 109, 116, 218, 436, 3161, 6322, 12644, 20357, 40714, 81428, 590353, 1180706, 2218913, 2361412, 4437826, 8875652, 64348477, 128696954, 257393908]

約数ペア:

[(1, 257393908), (2, 128696954), (4, 64348477), (29, 8875652), (58, 4437826), (109, 2361412), (116, 2218913), (218, 1180706), (436, 590353), (3161, 81428), (6322, 40714), (12644, 20357)]