12121920890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71305417}}^1$

素因数の和:71305441

約数の個数: 16

約数和(自身を含む): 23102955432

約数和(自身を除く): 10981034542

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 71305417, 142610834, 356527085, 713054170, 1212192089, 2424384178, 6060960445, 12121920890]

約数ペア:

[(1, 12121920890), (2, 6060960445), (5, 2424384178), (10, 1212192089), (17, 713054170), (34, 356527085), (85, 142610834), (170, 71305417)]