4144640

素因数分解:

$2^9\times 5^1\times {\mathrm{1619}}^1$

素因数の和:1642

約数の個数: 40

約数和(自身を含む): 9943560

約数和(自身を除く): 5798920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 1619, 2560, 3238, 6476, 8095, 12952, 16190, 25904, 32380, 51808, 64760, 103616, 129520, 207232, 259040, 414464, 518080, 828928, 1036160, 2072320, 4144640]

約数ペア:

[(1, 4144640), (2, 2072320), (4, 1036160), (5, 828928), (8, 518080), (10, 414464), (16, 259040), (20, 207232), (32, 129520), (40, 103616), (64, 64760), (80, 51808), (128, 32380), (160, 25904), (256, 16190), (320, 12952), (512, 8095), (640, 6476), (1280, 3238), (1619, 2560)]