20787910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14537}}^1$

素因数の和:14568

約数の個数: 32

約数和(自身を含む): 43962912

約数和(自身を除く): 23175002

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14537, 29074, 72685, 145370, 159907, 188981, 319814, 377962, 799535, 944905, 1599070, 1889810, 2078791, 4157582, 10393955, 20787910]

約数ペア:

[(1, 20787910), (2, 10393955), (5, 4157582), (10, 2078791), (11, 1889810), (13, 1599070), (22, 944905), (26, 799535), (55, 377962), (65, 319814), (110, 188981), (130, 159907), (143, 145370), (286, 72685), (715, 29074), (1430, 14537)]