199468395

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^2$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 420559776

約数和(自身を除く): 221091381

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 193, 255, 315, 357, 579, 595, 765, 965, 1071, 1351, 1737, 1785, 2895, 3281, 4053, 5355, 6755, 8685, 9843, 12159, 16405, 20265, 22967, 29529, 37249, 49215, 60795, 68901, 111747, 114835, 147645, 186245, 206703, 260743, 335241, 344505, 558735, 633233, 782229, 1033515, 1303715, 1676205, 1899699, 2346687, 3166165, 3911145, 4432631, 5699097, 9498495, 11733435, 13297893, 22163155, 28495485, 39893679, 66489465, 199468395]

約数ペア:

[(1, 199468395), (3, 66489465), (5, 39893679), (7, 28495485), (9, 22163155), (15, 13297893), (17, 11733435), (21, 9498495), (35, 5699097), (45, 4432631), (51, 3911145), (63, 3166165), (85, 2346687), (105, 1899699), (119, 1676205), (153, 1303715), (193, 1033515), (255, 782229), (315, 633233), (357, 558735), (579, 344505), (595, 335241), (765, 260743), (965, 206703), (1071, 186245), (1351, 147645), (1737, 114835), (1785, 111747), (2895, 68901), (3281, 60795), (4053, 49215), (5355, 37249), (6755, 29529), (8685, 22967), (9843, 20265), (12159, 16405)]