640224004

素因数分解:

$2^2\times 7^2\times {\mathrm{1153}}^1\times {\mathrm{2833}}^1$

素因数の和:4004

約数の個数: 36

約数和(自身を含む): 1304903964

約数和(自身を除く): 664679960

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1153, 2306, 2833, 4612, 5666, 8071, 11332, 16142, 19831, 32284, 39662, 56497, 79324, 112994, 138817, 225988, 277634, 555268, 3266449, 6532898, 13065796, 22865143, 45730286, 91460572, 160056001, 320112002, 640224004]

約数ペア:

[(1, 640224004), (2, 320112002), (4, 160056001), (7, 91460572), (14, 45730286), (28, 22865143), (49, 13065796), (98, 6532898), (196, 3266449), (1153, 555268), (2306, 277634), (2833, 225988), (4612, 138817), (5666, 112994), (8071, 79324), (11332, 56497), (16142, 39662), (19831, 32284)]