4081640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1523}}^1$

素因数の和:1601

約数の個数: 32

約数和(自身を含む): 9326880

約数和(自身を除く): 5245240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 1523, 2680, 3046, 6092, 7615, 12184, 15230, 30460, 60920, 102041, 204082, 408164, 510205, 816328, 1020410, 2040820, 4081640]

約数ペア:

[(1, 4081640), (2, 2040820), (4, 1020410), (5, 816328), (8, 510205), (10, 408164), (20, 204082), (40, 102041), (67, 60920), (134, 30460), (268, 15230), (335, 12184), (536, 7615), (670, 6092), (1340, 3046), (1523, 2680)]