2780345090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3915979}}^1$

素因数の和:3916057

約数の個数: 16

約数和(自身を含む): 5075110080

約数和(自身を除く): 2294764990

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 3915979, 7831958, 19579895, 39159790, 278034509, 556069018, 1390172545, 2780345090]

約数ペア:

[(1, 2780345090), (2, 1390172545), (5, 556069018), (10, 278034509), (71, 39159790), (142, 19579895), (355, 7831958), (710, 3915979)]