2420390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 5059584

約数和(自身を除く): 2639194

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 487, 497, 710, 974, 994, 2435, 2485, 3409, 4870, 4970, 6818, 17045, 34090, 34577, 69154, 172885, 242039, 345770, 484078, 1210195, 2420390]

約数ペア:

[(1, 2420390), (2, 1210195), (5, 484078), (7, 345770), (10, 242039), (14, 172885), (35, 69154), (70, 34577), (71, 34090), (142, 17045), (355, 6818), (487, 4970), (497, 4870), (710, 3409), (974, 2485), (994, 2435)]