219038545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{499}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 300672000

約数和(自身を除く): 81633455

約数列:

[1, 5, 11, 23, 55, 115, 253, 347, 499, 1265, 1735, 2495, 3817, 5489, 7981, 11477, 19085, 27445, 39905, 57385, 87791, 126247, 173153, 438955, 631235, 865765, 1904683, 3982519, 9523415, 19912595, 43807709, 219038545]

約数ペア:

[(1, 219038545), (5, 43807709), (11, 19912595), (23, 9523415), (55, 3982519), (115, 1904683), (253, 865765), (347, 631235), (499, 438955), (1265, 173153), (1735, 126247), (2495, 87791), (3817, 57385), (5489, 39905), (7981, 27445), (11477, 19085)]