205418640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{122273}}^1$

素因数の和:122296

約数の個数: 80

約数和(自身を含む): 727774848

約数和(自身を除く): 522356208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 122273, 244546, 366819, 489092, 611365, 733638, 855911, 978184, 1222730, 1467276, 1711822, 1834095, 1956368, 2445460, 2567733, 2934552, 3423644, 3668190, 4279555, 4890920, 5135466, 5869104, 6847288, 7336380, 8559110, 9781840, 10270932, 12838665, 13694576, 14672760, 17118220, 20541864, 25677330, 29345520, 34236440, 41083728, 51354660, 68472880, 102709320, 205418640]

約数ペア:

[(1, 205418640), (2, 102709320), (3, 68472880), (4, 51354660), (5, 41083728), (6, 34236440), (7, 29345520), (8, 25677330), (10, 20541864), (12, 17118220), (14, 14672760), (15, 13694576), (16, 12838665), (20, 10270932), (21, 9781840), (24, 8559110), (28, 7336380), (30, 6847288), (35, 5869104), (40, 5135466), (42, 4890920), (48, 4279555), (56, 3668190), (60, 3423644), (70, 2934552), (80, 2567733), (84, 2445460), (105, 1956368), (112, 1834095), (120, 1711822), (140, 1467276), (168, 1222730), (210, 978184), (240, 855911), (280, 733638), (336, 611365), (420, 489092), (560, 366819), (840, 244546), (1680, 122273)]