20196280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38839}}^1$

素因数の和:38863

約数の個数: 32

約数和(自身を含む): 48938400

約数和(自身を除く): 28742120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38839, 77678, 155356, 194195, 310712, 388390, 504907, 776780, 1009814, 1553560, 2019628, 2524535, 4039256, 5049070, 10098140, 20196280]

約数ペア:

[(1, 20196280), (2, 10098140), (4, 5049070), (5, 4039256), (8, 2524535), (10, 2019628), (13, 1553560), (20, 1009814), (26, 776780), (40, 504907), (52, 388390), (65, 310712), (104, 194195), (130, 155356), (260, 77678), (520, 38839)]