2831480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1079

約数の個数: 32

約数和(自身を含む): 6467040

約数和(自身を除く): 3635560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 997, 1420, 1994, 2840, 3988, 4985, 7976, 9970, 19940, 39880, 70787, 141574, 283148, 353935, 566296, 707870, 1415740, 2831480]

約数ペア:

[(1, 2831480), (2, 1415740), (4, 707870), (5, 566296), (8, 353935), (10, 283148), (20, 141574), (40, 70787), (71, 39880), (142, 19940), (284, 9970), (355, 7976), (568, 4985), (710, 3988), (997, 2840), (1420, 1994)]