81617280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42509}}^1$

素因数の和:42531

約数の個数: 64

約数和(自身を含む): 260161200

約数和(自身を除く): 178543920

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, 42509, 85018, 127527, 170036, 212545, 255054, 340072, 425090, 510108, 637635, 680144, 850180, 1020216, 1275270, 1360288, 1700360, 2040432, 2550540, 2720576, 3400720, 4080864, 5101080, 5441152, 6801440, 8161728, 10202160, 13602880, 16323456, 20404320, 27205760, 40808640, 81617280]

約数ペア:

[(1, 81617280), (2, 40808640), (3, 27205760), (4, 20404320), (5, 16323456), (6, 13602880), (8, 10202160), (10, 8161728), (12, 6801440), (15, 5441152), (16, 5101080), (20, 4080864), (24, 3400720), (30, 2720576), (32, 2550540), (40, 2040432), (48, 1700360), (60, 1360288), (64, 1275270), (80, 1020216), (96, 850180), (120, 680144), (128, 637635), (160, 510108), (192, 425090), (240, 340072), (320, 255054), (384, 212545), (480, 170036), (640, 127527), (960, 85018), (1920, 42509)]