261311680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{116657}}^1$

素因数の和:116681

約数の個数: 56

約数和(自身を含む): 711147168

約数和(自身を除く): 449835488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 116657, 233314, 466628, 583285, 816599, 933256, 1166570, 1633198, 1866512, 2333140, 3266396, 3733024, 4082995, 4666280, 6532792, 7466048, 8165990, 9332560, 13065584, 16331980, 18665120, 26131168, 32663960, 37330240, 52262336, 65327920, 130655840, 261311680]

約数ペア:

[(1, 261311680), (2, 130655840), (4, 65327920), (5, 52262336), (7, 37330240), (8, 32663960), (10, 26131168), (14, 18665120), (16, 16331980), (20, 13065584), (28, 9332560), (32, 8165990), (35, 7466048), (40, 6532792), (56, 4666280), (64, 4082995), (70, 3733024), (80, 3266396), (112, 2333140), (140, 1866512), (160, 1633198), (224, 1166570), (280, 933256), (320, 816599), (448, 583285), (560, 466628), (1120, 233314), (2240, 116657)]