81254170

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{2371}}^1$

素因数の和:2550

約数の個数: 32

約数和(自身を含む): 153705600

約数和(自身を除く): 72451430

約数列:

[1, 2, 5, 10, 23, 46, 115, 149, 230, 298, 745, 1490, 2371, 3427, 4742, 6854, 11855, 17135, 23710, 34270, 54533, 109066, 272665, 353279, 545330, 706558, 1766395, 3532790, 8125417, 16250834, 40627085, 81254170]

約数ペア:

[(1, 81254170), (2, 40627085), (5, 16250834), (10, 8125417), (23, 3532790), (46, 1766395), (115, 706558), (149, 545330), (230, 353279), (298, 272665), (745, 109066), (1490, 54533), (2371, 34270), (3427, 23710), (4742, 17135), (6854, 11855)]