178925968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{20981}}^1$

素因数の和:21043

約数の個数: 40

約数和(自身を含む): 382459896

約数和(自身を除く): 203533928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 4264, 8528, 20981, 41962, 83924, 167848, 272753, 335696, 545506, 860221, 1091012, 1720442, 2182024, 3440884, 4364048, 6881768, 11182873, 13763536, 22365746, 44731492, 89462984, 178925968]

約数ペア:

[(1, 178925968), (2, 89462984), (4, 44731492), (8, 22365746), (13, 13763536), (16, 11182873), (26, 6881768), (41, 4364048), (52, 3440884), (82, 2182024), (104, 1720442), (164, 1091012), (208, 860221), (328, 545506), (533, 335696), (656, 272753), (1066, 167848), (2132, 83924), (4264, 41962), (8528, 20981)]