1281036160

素因数分解:

$2^7\times 5^1\times {\mathrm{2001619}}^1$

素因数の和:2001638

約数の個数: 32

約数和(自身を含む): 3062478600

約数和(自身を除く): 1781442440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2001619, 4003238, 8006476, 10008095, 16012952, 20016190, 32025904, 40032380, 64051808, 80064760, 128103616, 160129520, 256207232, 320259040, 640518080, 1281036160]

約数ペア:

[(1, 1281036160), (2, 640518080), (4, 320259040), (5, 256207232), (8, 160129520), (10, 128103616), (16, 80064760), (20, 64051808), (32, 40032380), (40, 32025904), (64, 20016190), (80, 16012952), (128, 10008095), (160, 8006476), (320, 4003238), (640, 2001619)]