20604272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5827}}^1$

素因数の和:5865

約数の個数: 40

約数和(自身を含む): 45528336

約数和(自身を除く): 24924064

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5827, 11654, 23308, 46616, 75751, 93232, 99059, 151502, 198118, 303004, 396236, 606008, 792472, 1212016, 1287767, 1584944, 2575534, 5151068, 10302136, 20604272]

約数ペア:

[(1, 20604272), (2, 10302136), (4, 5151068), (8, 2575534), (13, 1584944), (16, 1287767), (17, 1212016), (26, 792472), (34, 606008), (52, 396236), (68, 303004), (104, 198118), (136, 151502), (208, 99059), (221, 93232), (272, 75751), (442, 46616), (884, 23308), (1768, 11654), (3536, 5827)]