7800440

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1021}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 17660160

約数和(自身を除く): 9859720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1021, 1528, 1910, 2042, 3820, 4084, 5105, 7640, 8168, 10210, 20420, 40840, 195011, 390022, 780044, 975055, 1560088, 1950110, 3900220, 7800440]

約数ペア:

[(1, 7800440), (2, 3900220), (4, 1950110), (5, 1560088), (8, 975055), (10, 780044), (20, 390022), (40, 195011), (191, 40840), (382, 20420), (764, 10210), (955, 8168), (1021, 7640), (1528, 5105), (1910, 4084), (2042, 3820)]