136989220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1\times {\mathrm{293}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 292845168

約数和(自身を除く): 155855948

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 241, 293, 388, 482, 485, 586, 964, 970, 1172, 1205, 1465, 1940, 2410, 2930, 4820, 5860, 23377, 28421, 46754, 56842, 70613, 93508, 113684, 116885, 141226, 142105, 233770, 282452, 284210, 353065, 467540, 568420, 706130, 1412260, 6849461, 13698922, 27397844, 34247305, 68494610, 136989220]

約数ペア:

[(1, 136989220), (2, 68494610), (4, 34247305), (5, 27397844), (10, 13698922), (20, 6849461), (97, 1412260), (194, 706130), (241, 568420), (293, 467540), (388, 353065), (482, 284210), (485, 282452), (586, 233770), (964, 142105), (970, 141226), (1172, 116885), (1205, 113684), (1465, 93508), (1940, 70613), (2410, 56842), (2930, 46754), (4820, 28421), (5860, 23377)]