388209985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 497933568

約数和(自身を除く): 109723583

約数列:

[1, 5, 23, 73, 115, 131, 353, 365, 655, 1679, 1765, 3013, 8119, 8395, 9563, 15065, 25769, 40595, 46243, 47815, 128845, 219949, 231215, 592687, 1063589, 1099745, 2963435, 3375739, 5317945, 16878695, 77641997, 388209985]

約数ペア:

[(1, 388209985), (5, 77641997), (23, 16878695), (73, 5317945), (115, 3375739), (131, 2963435), (353, 1099745), (365, 1063589), (655, 592687), (1679, 231215), (1765, 219949), (3013, 128845), (8119, 47815), (8395, 46243), (9563, 40595), (15065, 25769)]