220814984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{68491}}^1$

素因数の和:68541

約数の個数: 32

約数和(自身を含む): 460266240

約数和(自身を除く): 239451256

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 68491, 136982, 273964, 547928, 890383, 1780766, 2123221, 3561532, 4246442, 7123064, 8492884, 16985768, 27601873, 55203746, 110407492, 220814984]

約数ペア:

[(1, 220814984), (2, 110407492), (4, 55203746), (8, 27601873), (13, 16985768), (26, 8492884), (31, 7123064), (52, 4246442), (62, 3561532), (104, 2123221), (124, 1780766), (248, 890383), (403, 547928), (806, 273964), (1612, 136982), (3224, 68491)]