1900990090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1\times {\mathrm{12157}}^1$

素因数の和:13006

約数の個数: 32

約数和(自身を含む): 3606549120

約数和(自身を除く): 1705559030

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 823, 1646, 4115, 8230, 12157, 15637, 24314, 31274, 60785, 78185, 121570, 156370, 230983, 461966, 1154915, 2309830, 10005211, 20010422, 50026055, 100052110, 190099009, 380198018, 950495045, 1900990090]

約数ペア:

[(1, 1900990090), (2, 950495045), (5, 380198018), (10, 190099009), (19, 100052110), (38, 50026055), (95, 20010422), (190, 10005211), (823, 2309830), (1646, 1154915), (4115, 461966), (8230, 230983), (12157, 156370), (15637, 121570), (24314, 78185), (31274, 60785)]