7940010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20359}}^1$

素因数の和:20382

約数の個数: 32

約数和(自身を含む): 20522880

約数和(自身を除く): 12582870

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 20359, 40718, 61077, 101795, 122154, 203590, 264667, 305385, 529334, 610770, 794001, 1323335, 1588002, 2646670, 3970005, 7940010]

約数ペア:

[(1, 7940010), (2, 3970005), (3, 2646670), (5, 1588002), (6, 1323335), (10, 794001), (13, 610770), (15, 529334), (26, 305385), (30, 264667), (39, 203590), (65, 122154), (78, 101795), (130, 61077), (195, 40718), (390, 20359)]