71116420

素因数分解:

$2^2\times 5^1\times {\mathrm{1601}}^1\times {\mathrm{2221}}^1$

素因数の和:3831

約数の個数: 24

約数和(自身を含む): 149505048

約数和(自身を除く): 78388628

約数列:

[1, 2, 4, 5, 10, 20, 1601, 2221, 3202, 4442, 6404, 8005, 8884, 11105, 16010, 22210, 32020, 44420, 3555821, 7111642, 14223284, 17779105, 35558210, 71116420]

約数ペア:

[(1, 71116420), (2, 35558210), (4, 17779105), (5, 14223284), (10, 7111642), (20, 3555821), (1601, 44420), (2221, 32020), (3202, 22210), (4442, 16010), (6404, 11105), (8005, 8884)]