20796051520

素因数分解:

$2^6\times 5^1\times {\mathrm{233}}^1\times {\mathrm{278917}}^1$

素因数の和:279167

約数の個数: 56

約数和(自身を含む): 49733310744

約数和(自身を除く): 28937259224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 233, 320, 466, 932, 1165, 1864, 2330, 3728, 4660, 7456, 9320, 14912, 18640, 37280, 74560, 278917, 557834, 1115668, 1394585, 2231336, 2789170, 4462672, 5578340, 8925344, 11156680, 17850688, 22313360, 44626720, 64987661, 89253440, 129975322, 259950644, 324938305, 519901288, 649876610, 1039802576, 1299753220, 2079605152, 2599506440, 4159210304, 5199012880, 10398025760, 20796051520]

約数ペア:

[(1, 20796051520), (2, 10398025760), (4, 5199012880), (5, 4159210304), (8, 2599506440), (10, 2079605152), (16, 1299753220), (20, 1039802576), (32, 649876610), (40, 519901288), (64, 324938305), (80, 259950644), (160, 129975322), (233, 89253440), (320, 64987661), (466, 44626720), (932, 22313360), (1165, 17850688), (1864, 11156680), (2330, 8925344), (3728, 5578340), (4660, 4462672), (7456, 2789170), (9320, 2231336), (14912, 1394585), (18640, 1115668), (37280, 557834), (74560, 278917)]