81768190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{4157}}^1$

素因数の和:4452

約数の個数: 32

約数和(自身を含む): 168848064

約数和(自身を除く): 87079874

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 281, 562, 1405, 1967, 2810, 3934, 4157, 8314, 9835, 19670, 20785, 29099, 41570, 58198, 145495, 290990, 1168117, 2336234, 5840585, 8176819, 11681170, 16353638, 40884095, 81768190]

約数ペア:

[(1, 81768190), (2, 40884095), (5, 16353638), (7, 11681170), (10, 8176819), (14, 5840585), (35, 2336234), (70, 1168117), (281, 290990), (562, 145495), (1405, 58198), (1967, 41570), (2810, 29099), (3934, 20785), (4157, 19670), (8314, 9835)]