128580254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1153}}^1$

素因数の和:1340

約数の個数: 32

約数和(自身を含む): 217856736

約数和(自身を除く): 89276482

約数列:

[1, 2, 11, 22, 37, 74, 137, 274, 407, 814, 1153, 1507, 2306, 3014, 5069, 10138, 12683, 25366, 42661, 55759, 85322, 111518, 157961, 315922, 469271, 938542, 1737571, 3475142, 5844557, 11689114, 64290127, 128580254]

約数ペア:

[(1, 128580254), (2, 64290127), (11, 11689114), (22, 5844557), (37, 3475142), (74, 1737571), (137, 938542), (274, 469271), (407, 315922), (814, 157961), (1153, 111518), (1507, 85322), (2306, 55759), (3014, 42661), (5069, 25366), (10138, 12683)]