91249420

素因数分解:

$2^2\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{2141}}^1$

素因数の和:4281

約数の個数: 24

約数和(自身を含む): 191803248

約数和(自身を除く): 100553828

約数列:

[1, 2, 4, 5, 10, 20, 2131, 2141, 4262, 4282, 8524, 8564, 10655, 10705, 21310, 21410, 42620, 42820, 4562471, 9124942, 18249884, 22812355, 45624710, 91249420]

約数ペア:

[(1, 91249420), (2, 45624710), (4, 22812355), (5, 18249884), (10, 9124942), (20, 4562471), (2131, 42820), (2141, 42620), (4262, 21410), (4282, 21310), (8524, 10705), (8564, 10655)]