20123013546

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{317}}^1\times {\mathrm{5519}}^1$

素因数の和:5921

約数の個数: 80

約数和(自身を含む): 45878088960

約数和(自身を除く): 25755075414

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 317, 426, 634, 639, 951, 1278, 1902, 1917, 2853, 3834, 5519, 5706, 5751, 8559, 11038, 11502, 16557, 17118, 22507, 25677, 33114, 45014, 49671, 51354, 67521, 99342, 135042, 149013, 202563, 298026, 391849, 405126, 447039, 607689, 783698, 894078, 1175547, 1215378, 1749523, 1823067, 2351094, 3499046, 3526641, 3646134, 5248569, 7053282, 10497138, 10579923, 15745707, 21159846, 31491414, 31739769, 47237121, 63479538, 94474242, 124216133, 141711363, 248432266, 283422726, 372648399, 745296798, 1117945197, 2235890394, 3353835591, 6707671182, 10061506773, 20123013546]

約数ペア:

[(1, 20123013546), (2, 10061506773), (3, 6707671182), (6, 3353835591), (9, 2235890394), (18, 1117945197), (27, 745296798), (54, 372648399), (71, 283422726), (81, 248432266), (142, 141711363), (162, 124216133), (213, 94474242), (317, 63479538), (426, 47237121), (634, 31739769), (639, 31491414), (951, 21159846), (1278, 15745707), (1902, 10579923), (1917, 10497138), (2853, 7053282), (3834, 5248569), (5519, 3646134), (5706, 3526641), (5751, 3499046), (8559, 2351094), (11038, 1823067), (11502, 1749523), (16557, 1215378), (17118, 1175547), (22507, 894078), (25677, 783698), (33114, 607689), (45014, 447039), (49671, 405126), (51354, 391849), (67521, 298026), (99342, 202563), (135042, 149013)]