1311513025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{9323}}^1$

素因数の和:9681

約数の個数: 24

約数和(自身を含む): 1727326944

約数和(自身を除く): 415813919

約数列:

[1, 5, 17, 25, 85, 331, 425, 1655, 5627, 8275, 9323, 28135, 46615, 140675, 158491, 233075, 792455, 3085913, 3962275, 15429565, 52460521, 77147825, 262302605, 1311513025]

約数ペア:

[(1, 1311513025), (5, 262302605), (17, 77147825), (25, 52460521), (85, 15429565), (331, 3962275), (425, 3085913), (1655, 792455), (5627, 233075), (8275, 158491), (9323, 140675), (28135, 46615)]