321719985

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1361}}^1$

素因数の和:1495

約数の個数: 64

約数和(自身を含む): 611919360

約数和(自身を除く): 290199375

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 103, 135, 153, 255, 309, 459, 515, 765, 927, 1361, 1545, 1751, 2295, 2781, 4083, 4635, 5253, 6805, 8755, 12249, 13905, 15759, 20415, 23137, 26265, 36747, 47277, 61245, 69411, 78795, 115685, 140183, 183735, 208233, 236385, 347055, 420549, 624699, 700915, 1041165, 1261647, 2102745, 2383111, 3123495, 3784941, 6308235, 7149333, 11915555, 18924705, 21447999, 35746665, 64343997, 107239995, 321719985]

約数ペア:

[(1, 321719985), (3, 107239995), (5, 64343997), (9, 35746665), (15, 21447999), (17, 18924705), (27, 11915555), (45, 7149333), (51, 6308235), (85, 3784941), (103, 3123495), (135, 2383111), (153, 2102745), (255, 1261647), (309, 1041165), (459, 700915), (515, 624699), (765, 420549), (927, 347055), (1361, 236385), (1545, 208233), (1751, 183735), (2295, 140183), (2781, 115685), (4083, 78795), (4635, 69411), (5253, 61245), (6805, 47277), (8755, 36747), (12249, 26265), (13905, 23137), (15759, 20415)]