6378640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1123}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 15052608

約数和(自身を除く): 8673968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1123, 1136, 1420, 2246, 2840, 4492, 5615, 5680, 8984, 11230, 17968, 22460, 44920, 79733, 89840, 159466, 318932, 398665, 637864, 797330, 1275728, 1594660, 3189320, 6378640]

約数ペア:

[(1, 6378640), (2, 3189320), (4, 1594660), (5, 1275728), (8, 797330), (10, 637864), (16, 398665), (20, 318932), (40, 159466), (71, 89840), (80, 79733), (142, 44920), (284, 22460), (355, 17968), (568, 11230), (710, 8984), (1123, 5680), (1136, 5615), (1420, 4492), (2246, 2840)]