51320885

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 79289280

約数和(自身を除く): 27968395

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 137, 139, 245, 385, 539, 685, 695, 959, 973, 1507, 1529, 2695, 4795, 4865, 6713, 6811, 7535, 7645, 10549, 10703, 19043, 33565, 34055, 52745, 53515, 73843, 74921, 95215, 133301, 209473, 369215, 374605, 666505, 933107, 1047365, 1466311, 4665535, 7331555, 10264177, 51320885]

約数ペア:

[(1, 51320885), (5, 10264177), (7, 7331555), (11, 4665535), (35, 1466311), (49, 1047365), (55, 933107), (77, 666505), (137, 374605), (139, 369215), (245, 209473), (385, 133301), (539, 95215), (685, 74921), (695, 73843), (959, 53515), (973, 52745), (1507, 34055), (1529, 33565), (2695, 19043), (4795, 10703), (4865, 10549), (6713, 7645), (6811, 7535)]