40494640

素因数分解:

$2^4\times 5^1\times {\mathrm{506183}}^1$

素因数の和:506196

約数の個数: 20

約数和(自身を含む): 94150224

約数和(自身を除く): 53655584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 506183, 1012366, 2024732, 2530915, 4049464, 5061830, 8098928, 10123660, 20247320, 40494640]

約数ペア:

[(1, 40494640), (2, 20247320), (4, 10123660), (5, 8098928), (8, 5061830), (10, 4049464), (16, 2530915), (20, 2024732), (40, 1012366), (80, 506183)]