19499890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3539}}^1$

素因数の和:3594

約数の個数: 32

約数和(自身を含む): 38232000

約数和(自身を除く): 18732110

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 3539, 5510, 7078, 17695, 35390, 67241, 102631, 134482, 205262, 336205, 513155, 672410, 1026310, 1949989, 3899978, 9749945, 19499890]

約数ペア:

[(1, 19499890), (2, 9749945), (5, 3899978), (10, 1949989), (19, 1026310), (29, 672410), (38, 513155), (58, 336205), (95, 205262), (145, 134482), (190, 102631), (290, 67241), (551, 35390), (1102, 17695), (2755, 7078), (3539, 5510)]