2019989405

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{1597}}^1$

素因数の和:2189

約数の個数: 32

約数和(自身を含む): 2816570880

約数和(自身を除く): 796581475

約数列:

[1, 5, 7, 35, 71, 355, 497, 509, 1597, 2485, 2545, 3563, 7985, 11179, 17815, 36139, 55895, 113387, 180695, 252973, 566935, 793709, 812873, 1264865, 3968545, 4064365, 5690111, 28450555, 57713983, 288569915, 403997881, 2019989405]

約数ペア:

[(1, 2019989405), (5, 403997881), (7, 288569915), (35, 57713983), (71, 28450555), (355, 5690111), (497, 4064365), (509, 3968545), (1597, 1264865), (2485, 812873), (2545, 793709), (3563, 566935), (7985, 252973), (11179, 180695), (17815, 113387), (36139, 55895)]