198538840

素因数分解:

$2^3\times 5^1\times {\mathrm{4963471}}^1$

素因数の和:4963482

約数の個数: 16

約数和(自身を含む): 446712480

約数和(自身を除く): 248173640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4963471, 9926942, 19853884, 24817355, 39707768, 49634710, 99269420, 198538840]

約数ペア:

[(1, 198538840), (2, 99269420), (4, 49634710), (5, 39707768), (8, 24817355), (10, 19853884), (20, 9926942), (40, 4963471)]