257208960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{133963}}^1$

素因数の和:133985

約数の個数: 64

約数和(自身を含む): 819859680

約数和(自身を除く): 562650720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 133963, 267926, 401889, 535852, 669815, 803778, 1071704, 1339630, 1607556, 2009445, 2143408, 2679260, 3215112, 4018890, 4286816, 5358520, 6430224, 8037780, 8573632, 10717040, 12860448, 16075560, 17147264, 21434080, 25720896, 32151120, 42868160, 51441792, 64302240, 85736320, 128604480, 257208960]

約数ペア:

[(1, 257208960), (2, 128604480), (3, 85736320), (4, 64302240), (5, 51441792), (6, 42868160), (8, 32151120), (10, 25720896), (12, 21434080), (15, 17147264), (16, 16075560), (20, 12860448), (24, 10717040), (30, 8573632), (32, 8037780), (40, 6430224), (48, 5358520), (60, 4286816), (64, 4018890), (80, 3215112), (96, 2679260), (120, 2143408), (128, 2009445), (160, 1607556), (192, 1339630), (240, 1071704), (320, 803778), (384, 669815), (480, 535852), (640, 401889), (960, 267926), (1920, 133963)]