321523780

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{122719}}^1$

素因数の和:122859

約数の個数: 24

約数和(自身を含む): 680359680

約数和(自身を除く): 358835900

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 122719, 245438, 490876, 613595, 1227190, 2454380, 16076189, 32152378, 64304756, 80380945, 160761890, 321523780]

約数ペア:

[(1, 321523780), (2, 160761890), (4, 80380945), (5, 64304756), (10, 32152378), (20, 16076189), (131, 2454380), (262, 1227190), (524, 613595), (655, 490876), (1310, 245438), (2620, 122719)]