31809085

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 51854040

約数和(自身を除く): 20044955

約数列:

[1, 5, 7, 11, 29, 35, 37, 49, 55, 77, 121, 145, 185, 203, 245, 259, 319, 385, 407, 539, 605, 847, 1015, 1073, 1295, 1421, 1595, 1813, 2035, 2233, 2695, 2849, 3509, 4235, 4477, 5365, 5929, 7105, 7511, 9065, 11165, 11803, 14245, 15631, 17545, 19943, 22385, 24563, 29645, 31339, 37555, 52577, 59015, 78155, 82621, 99715, 122815, 129833, 156695, 171941, 219373, 262885, 413105, 578347, 649165, 859705, 908831, 1096865, 2891735, 4544155, 6361817, 31809085]

約数ペア:

[(1, 31809085), (5, 6361817), (7, 4544155), (11, 2891735), (29, 1096865), (35, 908831), (37, 859705), (49, 649165), (55, 578347), (77, 413105), (121, 262885), (145, 219373), (185, 171941), (203, 156695), (245, 129833), (259, 122815), (319, 99715), (385, 82621), (407, 78155), (539, 59015), (605, 52577), (847, 37555), (1015, 31339), (1073, 29645), (1295, 24563), (1421, 22385), (1595, 19943), (1813, 17545), (2035, 15631), (2233, 14245), (2695, 11803), (2849, 11165), (3509, 9065), (4235, 7511), (4477, 7105), (5365, 5929)]