281818790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{6389}}^1$

素因数の和:6808

約数の個数: 32

約数和(自身を含む): 554856480

約数和(自身を除く): 273037690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 401, 802, 2005, 4010, 4411, 6389, 8822, 12778, 22055, 31945, 44110, 63890, 70279, 140558, 351395, 702790, 2561989, 5123978, 12809945, 25619890, 28181879, 56363758, 140909395, 281818790]

約数ペア:

[(1, 281818790), (2, 140909395), (5, 56363758), (10, 28181879), (11, 25619890), (22, 12809945), (55, 5123978), (110, 2561989), (401, 702790), (802, 351395), (2005, 140558), (4010, 70279), (4411, 63890), (6389, 44110), (8822, 31945), (12778, 22055)]