199438240

素因数分解:

$2^5\times 5^1\times {\mathrm{1246489}}^1$

素因数の和:1246504

約数の個数: 24

約数和(自身を含む): 471173220

約数和(自身を除く): 271734980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1246489, 2492978, 4985956, 6232445, 9971912, 12464890, 19943824, 24929780, 39887648, 49859560, 99719120, 199438240]

約数ペア:

[(1, 199438240), (2, 99719120), (4, 49859560), (5, 39887648), (8, 24929780), (10, 19943824), (16, 12464890), (20, 9971912), (32, 6232445), (40, 4985956), (80, 2492978), (160, 1246489)]