18139240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64783}}^1$

素因数の和:64801

約数の個数: 32

約数和(自身を含む): 46644480

約数和(自身を除く): 28505240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64783, 129566, 259132, 323915, 453481, 518264, 647830, 906962, 1295660, 1813924, 2267405, 2591320, 3627848, 4534810, 9069620, 18139240]

約数ペア:

[(1, 18139240), (2, 9069620), (4, 4534810), (5, 3627848), (7, 2591320), (8, 2267405), (10, 1813924), (14, 1295660), (20, 906962), (28, 647830), (35, 518264), (40, 453481), (56, 323915), (70, 259132), (140, 129566), (280, 64783)]