397421804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{78791}}^1$

素因数の和:78905

約数の個数: 24

約数和(自身を含む): 756718368

約数和(自身を除く): 359296564

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 5044, 78791, 157582, 315164, 1024283, 2048566, 4097132, 7642727, 15285454, 30570908, 99355451, 198710902, 397421804]

約数ペア:

[(1, 397421804), (2, 198710902), (4, 99355451), (13, 30570908), (26, 15285454), (52, 7642727), (97, 4097132), (194, 2048566), (388, 1024283), (1261, 315164), (2522, 157582), (5044, 78791)]