20658430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{433}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 40247424

約数和(自身を除く): 19588994

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 367, 433, 734, 866, 1835, 2165, 3670, 4330, 4771, 5629, 9542, 11258, 23855, 28145, 47710, 56290, 158911, 317822, 794555, 1589110, 2065843, 4131686, 10329215, 20658430]

約数ペア:

[(1, 20658430), (2, 10329215), (5, 4131686), (10, 2065843), (13, 1589110), (26, 794555), (65, 317822), (130, 158911), (367, 56290), (433, 47710), (734, 28145), (866, 23855), (1835, 11258), (2165, 9542), (3670, 5629), (4330, 4771)]