18922280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36389}}^1$

素因数の和:36413

約数の個数: 32

約数和(自身を含む): 45851400

約数和(自身を除く): 26929120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36389, 72778, 145556, 181945, 291112, 363890, 473057, 727780, 946114, 1455560, 1892228, 2365285, 3784456, 4730570, 9461140, 18922280]

約数ペア:

[(1, 18922280), (2, 9461140), (4, 4730570), (5, 3784456), (8, 2365285), (10, 1892228), (13, 1455560), (20, 946114), (26, 727780), (40, 473057), (52, 363890), (65, 291112), (104, 181945), (130, 145556), (260, 72778), (520, 36389)]