1640789956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{17837}}^1$

素因数の和:17944

約数の個数: 48

約数和(自身を含む): 3251510640

約数和(自身を除く): 1610720684

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 61, 116, 122, 244, 377, 754, 793, 1508, 1586, 1769, 3172, 3538, 7076, 17837, 22997, 35674, 45994, 71348, 91988, 231881, 463762, 517273, 927524, 1034546, 1088057, 2069092, 2176114, 4352228, 6724549, 13449098, 14144741, 26898196, 28289482, 31553653, 56578964, 63107306, 126214612, 410197489, 820394978, 1640789956]

約数ペア:

[(1, 1640789956), (2, 820394978), (4, 410197489), (13, 126214612), (26, 63107306), (29, 56578964), (52, 31553653), (58, 28289482), (61, 26898196), (116, 14144741), (122, 13449098), (244, 6724549), (377, 4352228), (754, 2176114), (793, 2069092), (1508, 1088057), (1586, 1034546), (1769, 927524), (3172, 517273), (3538, 463762), (7076, 231881), (17837, 91988), (22997, 71348), (35674, 45994)]