20120899185

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1229}}^1\times {\mathrm{21401}}^1$

素因数の和:22658

約数の個数: 48

約数和(自身を含む): 36959541840

約数和(自身を除く): 16838642655

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 1229, 3687, 6145, 11061, 18435, 20893, 21401, 55305, 62679, 64203, 104465, 107005, 188037, 192609, 313395, 321015, 363817, 940185, 963045, 1091451, 1819085, 3274353, 5457255, 16371765, 26301829, 78905487, 131509145, 236716461, 394527435, 447131093, 1183582305, 1341393279, 2235655465, 4024179837, 6706966395, 20120899185]

約数ペア:

[(1, 20120899185), (3, 6706966395), (5, 4024179837), (9, 2235655465), (15, 1341393279), (17, 1183582305), (45, 447131093), (51, 394527435), (85, 236716461), (153, 131509145), (255, 78905487), (765, 26301829), (1229, 16371765), (3687, 5457255), (6145, 3274353), (11061, 1819085), (18435, 1091451), (20893, 963045), (21401, 940185), (55305, 363817), (62679, 321015), (64203, 313395), (104465, 192609), (107005, 188037)]