19659380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{911}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 25386124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 911, 1079, 1660, 1822, 2158, 3644, 4316, 4555, 5395, 9110, 10790, 11843, 18220, 21580, 23686, 47372, 59215, 75613, 118430, 151226, 236860, 302452, 378065, 756130, 982969, 1512260, 1965938, 3931876, 4914845, 9829690, 19659380]

約数ペア:

[(1, 19659380), (2, 9829690), (4, 4914845), (5, 3931876), (10, 1965938), (13, 1512260), (20, 982969), (26, 756130), (52, 378065), (65, 302452), (83, 236860), (130, 151226), (166, 118430), (260, 75613), (332, 59215), (415, 47372), (830, 23686), (911, 21580), (1079, 18220), (1660, 11843), (1822, 10790), (2158, 9110), (3644, 5395), (4316, 4555)]