12664405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 17678304

約数和(自身を除く): 5013899

約数列:

[1, 5, 13, 17, 65, 73, 85, 157, 221, 365, 785, 949, 1105, 1241, 2041, 2669, 4745, 6205, 10205, 11461, 13345, 16133, 34697, 57305, 80665, 148993, 173485, 194837, 744965, 974185, 2532881, 12664405]

約数ペア:

[(1, 12664405), (5, 2532881), (13, 974185), (17, 744965), (65, 194837), (73, 173485), (85, 148993), (157, 80665), (221, 57305), (365, 34697), (785, 16133), (949, 13345), (1105, 11461), (1241, 10205), (2041, 6205), (2669, 4745)]