7864100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4139}}^1$

素因数の和:4172

約数の個数: 36

約数和(自身を含む): 17967600

約数和(自身を除く): 10103500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 4139, 8278, 16556, 20695, 41390, 78641, 82780, 103475, 157282, 206950, 314564, 393205, 413900, 786410, 1572820, 1966025, 3932050, 7864100]

約数ペア:

[(1, 7864100), (2, 3932050), (4, 1966025), (5, 1572820), (10, 786410), (19, 413900), (20, 393205), (25, 314564), (38, 206950), (50, 157282), (76, 103475), (95, 82780), (100, 78641), (190, 41390), (380, 20695), (475, 16556), (950, 8278), (1900, 4139)]