68440505

素因数分解:

$5^1\times 7^4\times {\mathrm{5701}}^1$

素因数の和:5734

約数の個数: 20

約数和(自身を含む): 95827812

約数和(自身を除く): 27387307

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 5701, 12005, 28505, 39907, 199535, 279349, 1396745, 1955443, 9777215, 13688101, 68440505]

約数ペア:

[(1, 68440505), (5, 13688101), (7, 9777215), (35, 1955443), (49, 1396745), (245, 279349), (343, 199535), (1715, 39907), (2401, 28505), (5701, 12005)]