25219930

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 47044800

約数和(自身を除く): 21824870

約数列:

[1, 2, 5, 10, 43, 86, 89, 178, 215, 430, 445, 659, 890, 1318, 3295, 3827, 6590, 7654, 19135, 28337, 38270, 56674, 58651, 117302, 141685, 283370, 293255, 586510, 2521993, 5043986, 12609965, 25219930]

約数ペア:

[(1, 25219930), (2, 12609965), (5, 5043986), (10, 2521993), (43, 586510), (86, 293255), (89, 283370), (178, 141685), (215, 117302), (430, 58651), (445, 56674), (659, 38270), (890, 28337), (1318, 19135), (3295, 7654), (3827, 6590)]