85871305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 117573120

約数和(自身を除く): 31701815

約数列:

[1, 5, 13, 23, 65, 71, 115, 299, 355, 809, 923, 1495, 1633, 4045, 4615, 8165, 10517, 18607, 21229, 52585, 57439, 93035, 106145, 241891, 287195, 746707, 1209455, 1321097, 3733535, 6605485, 17174261, 85871305]

約数ペア:

[(1, 85871305), (5, 17174261), (13, 6605485), (23, 3733535), (65, 1321097), (71, 1209455), (115, 746707), (299, 287195), (355, 241891), (809, 106145), (923, 93035), (1495, 57439), (1633, 52585), (4045, 21229), (4615, 18607), (8165, 10517)]