639311924

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{457}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 1200326400

約数和(自身を除く): 561014476

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 233, 316, 457, 466, 914, 932, 1501, 1828, 3002, 4427, 6004, 8683, 8854, 17366, 17708, 18407, 34732, 36103, 36814, 72206, 73628, 106481, 144412, 212962, 349733, 425924, 685957, 699466, 1371914, 1398932, 2023139, 2743828, 4046278, 8092556, 8411999, 16823998, 33647996, 159827981, 319655962, 639311924]

約数ペア:

[(1, 639311924), (2, 319655962), (4, 159827981), (19, 33647996), (38, 16823998), (76, 8411999), (79, 8092556), (158, 4046278), (233, 2743828), (316, 2023139), (457, 1398932), (466, 1371914), (914, 699466), (932, 685957), (1501, 425924), (1828, 349733), (3002, 212962), (4427, 144412), (6004, 106481), (8683, 73628), (8854, 72206), (17366, 36814), (17708, 36103), (18407, 34732)]