81666465

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 146361600

約数和(自身を除く): 64695135

約数列:

[1, 3, 5, 15, 19, 29, 41, 57, 87, 95, 123, 145, 205, 241, 285, 435, 551, 615, 723, 779, 1189, 1205, 1653, 2337, 2755, 3567, 3615, 3895, 4579, 5945, 6989, 8265, 9881, 11685, 13737, 17835, 20967, 22591, 22895, 29643, 34945, 49405, 67773, 68685, 104835, 112955, 132791, 148215, 187739, 286549, 338865, 398373, 563217, 663955, 859647, 938695, 1432745, 1991865, 2816085, 4298235, 5444431, 16333293, 27222155, 81666465]

約数ペア:

[(1, 81666465), (3, 27222155), (5, 16333293), (15, 5444431), (19, 4298235), (29, 2816085), (41, 1991865), (57, 1432745), (87, 938695), (95, 859647), (123, 663955), (145, 563217), (205, 398373), (241, 338865), (285, 286549), (435, 187739), (551, 148215), (615, 132791), (723, 112955), (779, 104835), (1189, 68685), (1205, 67773), (1653, 49405), (2337, 34945), (2755, 29643), (3567, 22895), (3615, 22591), (3895, 20967), (4579, 17835), (5945, 13737), (6989, 11685), (8265, 9881)]