71358640

素因数分解:

$2^4\times 5^1\times {\mathrm{891983}}^1$

素因数の和:891996

約数の個数: 20

約数和(自身を含む): 165909024

約数和(自身を除く): 94550384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 891983, 1783966, 3567932, 4459915, 7135864, 8919830, 14271728, 17839660, 35679320, 71358640]

約数ペア:

[(1, 71358640), (2, 35679320), (4, 17839660), (5, 14271728), (8, 8919830), (10, 7135864), (16, 4459915), (20, 3567932), (40, 1783966), (80, 891983)]