890444885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{3889}}^1$

素因数の和:4109

約数の個数: 32

約数和(自身を含む): 1223389440

約数和(自身を除く): 332944555

約数列:

[1, 5, 11, 23, 55, 115, 181, 253, 905, 1265, 1991, 3889, 4163, 9955, 19445, 20815, 42779, 45793, 89447, 213895, 228965, 447235, 703909, 983917, 3519545, 4919585, 7742999, 16189907, 38714995, 80949535, 178088977, 890444885]

約数ペア:

[(1, 890444885), (5, 178088977), (11, 80949535), (23, 38714995), (55, 16189907), (115, 7742999), (181, 4919585), (253, 3519545), (905, 983917), (1265, 703909), (1991, 447235), (3889, 228965), (4163, 213895), (9955, 89447), (19445, 45793), (20815, 42779)]