1680705

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:67

約数の個数: 48

約数和(自身を含む): 3341520

約数和(自身を除く): 1660815

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 169, 195, 221, 255, 507, 585, 663, 765, 845, 1105, 1521, 1989, 2197, 2535, 2873, 3315, 6591, 7605, 8619, 9945, 10985, 14365, 19773, 25857, 32955, 37349, 43095, 98865, 112047, 129285, 186745, 336141, 560235, 1680705]

約数ペア:

[(1, 1680705), (3, 560235), (5, 336141), (9, 186745), (13, 129285), (15, 112047), (17, 98865), (39, 43095), (45, 37349), (51, 32955), (65, 25857), (85, 19773), (117, 14365), (153, 10985), (169, 9945), (195, 8619), (221, 7605), (255, 6591), (507, 3315), (585, 2873), (663, 2535), (765, 2197), (845, 1989), (1105, 1521)]