394421495

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{8807}}^1$

素因数の和:8891

約数の個数: 24

約数和(自身を含む): 522243936

約数和(自身を除く): 127822441

約数列:

[1, 5, 13, 53, 65, 169, 265, 689, 845, 3445, 8807, 8957, 44035, 44785, 114491, 466771, 572455, 1488383, 2333855, 6068023, 7441915, 30340115, 78884299, 394421495]

約数ペア:

[(1, 394421495), (5, 78884299), (13, 30340115), (53, 7441915), (65, 6068023), (169, 2333855), (265, 1488383), (689, 572455), (845, 466771), (3445, 114491), (8807, 44785), (8957, 44035)]