261972765

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 482630400

約数和(自身を除く): 220657635

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 179, 185, 293, 333, 537, 555, 879, 895, 999, 1465, 1611, 1665, 2637, 2685, 4395, 4833, 4995, 6623, 7911, 8055, 10841, 13185, 19869, 24165, 32523, 33115, 39555, 52447, 54205, 59607, 97569, 99345, 157341, 162615, 178821, 262235, 292707, 298035, 472023, 487845, 786705, 894105, 1416069, 1463535, 1940539, 2360115, 5821617, 7080345, 9702695, 17464851, 29108085, 52394553, 87324255, 261972765]

約数ペア:

[(1, 261972765), (3, 87324255), (5, 52394553), (9, 29108085), (15, 17464851), (27, 9702695), (37, 7080345), (45, 5821617), (111, 2360115), (135, 1940539), (179, 1463535), (185, 1416069), (293, 894105), (333, 786705), (537, 487845), (555, 472023), (879, 298035), (895, 292707), (999, 262235), (1465, 178821), (1611, 162615), (1665, 157341), (2637, 99345), (2685, 97569), (4395, 59607), (4833, 54205), (4995, 52447), (6623, 39555), (7911, 33115), (8055, 32523), (10841, 24165), (13185, 19869)]