128250265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{991}}^1$

素因数の和:1201

約数の個数: 32

約数和(自身を含む): 181988352

約数和(自身を除く): 53738087

約数列:

[1, 5, 11, 13, 55, 65, 143, 181, 715, 905, 991, 1991, 2353, 4955, 9955, 10901, 11765, 12883, 25883, 54505, 64415, 129415, 141713, 179371, 708565, 896855, 1973081, 2331823, 9865405, 11659115, 25650053, 128250265]

約数ペア:

[(1, 128250265), (5, 25650053), (11, 11659115), (13, 9865405), (55, 2331823), (65, 1973081), (143, 896855), (181, 708565), (715, 179371), (905, 141713), (991, 129415), (1991, 64415), (2353, 54505), (4955, 25883), (9955, 12883), (10901, 11765)]