64420165

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 85680000

約数和(自身を除く): 21259835

約数列:

[1, 5, 19, 29, 67, 95, 145, 335, 349, 551, 1273, 1745, 1943, 2755, 6365, 6631, 9715, 10121, 23383, 33155, 36917, 50605, 116915, 184585, 192299, 444277, 678107, 961495, 2221385, 3390535, 12884033, 64420165]

約数ペア:

[(1, 64420165), (5, 12884033), (19, 3390535), (29, 2221385), (67, 961495), (95, 678107), (145, 444277), (335, 192299), (349, 184585), (551, 116915), (1273, 50605), (1745, 36917), (1943, 33155), (2755, 23383), (6365, 10121), (6631, 9715)]