219495370

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1\times {\mathrm{431}}^1$

素因数の和:966

約数の個数: 32

約数和(自身を含む): 400121856

約数和(自身を除く): 180626486

約数列:

[1, 2, 5, 10, 127, 254, 401, 431, 635, 802, 862, 1270, 2005, 2155, 4010, 4310, 50927, 54737, 101854, 109474, 172831, 254635, 273685, 345662, 509270, 547370, 864155, 1728310, 21949537, 43899074, 109747685, 219495370]

約数ペア:

[(1, 219495370), (2, 109747685), (5, 43899074), (10, 21949537), (127, 1728310), (254, 864155), (401, 547370), (431, 509270), (635, 345662), (802, 273685), (862, 254635), (1270, 172831), (2005, 109474), (2155, 101854), (4010, 54737), (4310, 50927)]