81115678

素因数分解:

$2^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{14029}}^1$

素因数の和:14104

約数の個数: 24

約数和(自身を含む): 143947800

約数和(自身を除く): 62832122

約数列:

[1, 2, 7, 14, 49, 59, 98, 118, 413, 826, 2891, 5782, 14029, 28058, 98203, 196406, 687421, 827711, 1374842, 1655422, 5793977, 11587954, 40557839, 81115678]

約数ペア:

[(1, 81115678), (2, 40557839), (7, 11587954), (14, 5793977), (49, 1655422), (59, 1374842), (98, 827711), (118, 687421), (413, 196406), (826, 98203), (2891, 28058), (5782, 14029)]