813370420

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{92639}}^1$

素因数の和:93087

約数の個数: 24

約数和(自身を含む): 1711987200

約数和(自身を除く): 898616780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 92639, 185278, 370556, 463195, 926390, 1852780, 40668521, 81337042, 162674084, 203342605, 406685210, 813370420]

約数ペア:

[(1, 813370420), (2, 406685210), (4, 203342605), (5, 162674084), (10, 81337042), (20, 40668521), (439, 1852780), (878, 926390), (1756, 463195), (2195, 370556), (4390, 185278), (8780, 92639)]