201654790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2521}}^1$

素因数の和:2968

約数の個数: 32

約数和(自身を含む): 383142240

約数和(自身を除く): 181487450

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 421, 842, 2105, 2521, 4210, 5042, 7999, 12605, 15998, 25210, 39995, 47899, 79990, 95798, 239495, 478990, 1061341, 2122682, 5306705, 10613410, 20165479, 40330958, 100827395, 201654790]

約数ペア:

[(1, 201654790), (2, 100827395), (5, 40330958), (10, 20165479), (19, 10613410), (38, 5306705), (95, 2122682), (190, 1061341), (421, 478990), (842, 239495), (2105, 95798), (2521, 79990), (4210, 47899), (5042, 39995), (7999, 25210), (12605, 15998)]