31313920

素因数分解:

$2^{12}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 104

約数和(自身を含む): 82565280

約数和(自身を除く): 51251360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 139, 160, 176, 220, 256, 278, 320, 352, 440, 512, 556, 640, 695, 704, 880, 1024, 1112, 1280, 1390, 1408, 1529, 1760, 2048, 2224, 2560, 2780, 2816, 3058, 3520, 4096, 4448, 5120, 5560, 5632, 6116, 7040, 7645, 8896, 10240, 11120, 11264, 12232, 14080, 15290, 17792, 20480, 22240, 22528, 24464, 28160, 30580, 35584, 44480, 45056, 48928, 56320, 61160, 71168, 88960, 97856, 112640, 122320, 142336, 177920, 195712, 225280, 244640, 284672, 355840, 391424, 489280, 569344, 711680, 782848, 978560, 1423360, 1565696, 1957120, 2846720, 3131392, 3914240, 6262784, 7828480, 15656960, 31313920]

約数ペア:

[(1, 31313920), (2, 15656960), (4, 7828480), (5, 6262784), (8, 3914240), (10, 3131392), (11, 2846720), (16, 1957120), (20, 1565696), (22, 1423360), (32, 978560), (40, 782848), (44, 711680), (55, 569344), (64, 489280), (80, 391424), (88, 355840), (110, 284672), (128, 244640), (139, 225280), (160, 195712), (176, 177920), (220, 142336), (256, 122320), (278, 112640), (320, 97856), (352, 88960), (440, 71168), (512, 61160), (556, 56320), (640, 48928), (695, 45056), (704, 44480), (880, 35584), (1024, 30580), (1112, 28160), (1280, 24464), (1390, 22528), (1408, 22240), (1529, 20480), (1760, 17792), (2048, 15290), (2224, 14080), (2560, 12232), (2780, 11264), (2816, 11120), (3058, 10240), (3520, 8896), (4096, 7645), (4448, 7040), (5120, 6116), (5560, 5632)]