2780137255

素因数分解:

$5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{75149}}^1$

素因数の和:75319

約数の個数: 24

約数和(自身を含む): 3906597600

約数和(自身を除く): 1126460345

約数列:

[1, 5, 7, 35, 49, 151, 245, 755, 1057, 5285, 7399, 36995, 75149, 375745, 526043, 2630215, 3682301, 11347499, 18411505, 56737495, 79432493, 397162465, 556027451, 2780137255]

約数ペア:

[(1, 2780137255), (5, 556027451), (7, 397162465), (35, 79432493), (49, 56737495), (151, 18411505), (245, 11347499), (755, 3682301), (1057, 2630215), (5285, 526043), (7399, 375745), (36995, 75149)]