628607375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 892809216

約数和(自身を除く): 264201841

約数列:

[1, 5, 11, 25, 47, 55, 71, 125, 137, 235, 275, 355, 517, 685, 781, 1175, 1375, 1507, 1775, 2585, 3337, 3425, 3905, 5875, 6439, 7535, 8875, 9727, 12925, 16685, 17125, 19525, 32195, 36707, 37675, 48635, 64625, 70829, 83425, 97625, 106997, 160975, 183535, 188375, 243175, 354145, 417125, 457169, 534985, 804875, 917675, 1215875, 1770725, 2285845, 2674925, 4588375, 5028859, 8853625, 11429225, 13374625, 25144295, 57146125, 125721475, 628607375]

約数ペア:

[(1, 628607375), (5, 125721475), (11, 57146125), (25, 25144295), (47, 13374625), (55, 11429225), (71, 8853625), (125, 5028859), (137, 4588375), (235, 2674925), (275, 2285845), (355, 1770725), (517, 1215875), (685, 917675), (781, 804875), (1175, 534985), (1375, 457169), (1507, 417125), (1775, 354145), (2585, 243175), (3337, 188375), (3425, 183535), (3905, 160975), (5875, 106997), (6439, 97625), (7535, 83425), (8875, 70829), (9727, 64625), (12925, 48635), (16685, 37675), (17125, 36707), (19525, 32195)]