20739290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14503}}^1$

素因数の和:14534

約数の個数: 32

約数和(自身を含む): 43860096

約数和(自身を除く): 23120806

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14503, 29006, 72515, 145030, 159533, 188539, 319066, 377078, 797665, 942695, 1595330, 1885390, 2073929, 4147858, 10369645, 20739290]

約数ペア:

[(1, 20739290), (2, 10369645), (5, 4147858), (10, 2073929), (11, 1885390), (13, 1595330), (22, 942695), (26, 797665), (55, 377078), (65, 319066), (110, 188539), (130, 159533), (143, 145030), (286, 72515), (715, 29006), (1430, 14503)]