28780491236

素因数分解:

$2^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1347149}}^1$

素因数の和:1347276

約数の個数: 36

約数和(自身を含む): 59126413500

約数和(自身を除く): 30345922264

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 109, 196, 218, 436, 763, 1526, 3052, 5341, 10682, 21364, 1347149, 2694298, 5388596, 9430043, 18860086, 37720172, 66010301, 132020602, 146839241, 264041204, 293678482, 587356964, 1027874687, 2055749374, 4111498748, 7195122809, 14390245618, 28780491236]

約数ペア:

[(1, 28780491236), (2, 14390245618), (4, 7195122809), (7, 4111498748), (14, 2055749374), (28, 1027874687), (49, 587356964), (98, 293678482), (109, 264041204), (196, 146839241), (218, 132020602), (436, 66010301), (763, 37720172), (1526, 18860086), (3052, 9430043), (5341, 5388596), (10682, 2694298), (21364, 1347149)]