81789565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1567}}^1$

素因数の和:1669

約数の個数: 32

約数和(自身を含む): 116960256

約数和(自身を除く): 35170691

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 365, 715, 803, 949, 1567, 4015, 4745, 7835, 10439, 17237, 20371, 52195, 86185, 101855, 114391, 224081, 571955, 1120405, 1258301, 1487083, 6291505, 7435415, 16357913, 81789565]

約数ペア:

[(1, 81789565), (5, 16357913), (11, 7435415), (13, 6291505), (55, 1487083), (65, 1258301), (73, 1120405), (143, 571955), (365, 224081), (715, 114391), (803, 101855), (949, 86185), (1567, 52195), (4015, 20371), (4745, 17237), (7835, 10439)]