4999990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^2$

素因数の和:292

約数の個数: 24

約数和(自身を含む): 9364032

約数和(自身を除く): 4364042

約数列:

[1, 2, 5, 10, 31, 62, 127, 155, 254, 310, 635, 1270, 3937, 7874, 16129, 19685, 32258, 39370, 80645, 161290, 499999, 999998, 2499995, 4999990]

約数ペア:

[(1, 4999990), (2, 2499995), (5, 999998), (10, 499999), (31, 161290), (62, 80645), (127, 39370), (155, 32258), (254, 19685), (310, 16129), (635, 7874), (1270, 3937)]