20726068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21408332

約数列:

[1, 2, 4, 11, 22, 29, 37, 44, 58, 74, 116, 148, 319, 407, 439, 638, 814, 878, 1073, 1276, 1628, 1756, 2146, 4292, 4829, 9658, 11803, 12731, 16243, 19316, 23606, 25462, 32486, 47212, 50924, 64972, 140041, 178673, 280082, 357346, 471047, 560164, 714692, 942094, 1884188, 5181517, 10363034, 20726068]

約数ペア:

[(1, 20726068), (2, 10363034), (4, 5181517), (11, 1884188), (22, 942094), (29, 714692), (37, 560164), (44, 471047), (58, 357346), (74, 280082), (116, 178673), (148, 140041), (319, 64972), (407, 50924), (439, 47212), (638, 32486), (814, 25462), (878, 23606), (1073, 19316), (1276, 16243), (1628, 12731), (1756, 11803), (2146, 9658), (4292, 4829)]