81551360

素因数分解:

$2^{13}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 112

約数和(自身を含む): 214682832

約数和(自身を除く): 133131472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 181, 220, 256, 320, 352, 362, 440, 512, 640, 704, 724, 880, 905, 1024, 1280, 1408, 1448, 1760, 1810, 1991, 2048, 2560, 2816, 2896, 3520, 3620, 3982, 4096, 5120, 5632, 5792, 7040, 7240, 7964, 8192, 9955, 10240, 11264, 11584, 14080, 14480, 15928, 19910, 20480, 22528, 23168, 28160, 28960, 31856, 39820, 40960, 45056, 46336, 56320, 57920, 63712, 79640, 90112, 92672, 112640, 115840, 127424, 159280, 185344, 225280, 231680, 254848, 318560, 370688, 450560, 463360, 509696, 637120, 741376, 926720, 1019392, 1274240, 1482752, 1853440, 2038784, 2548480, 3706880, 4077568, 5096960, 7413760, 8155136, 10193920, 16310272, 20387840, 40775680, 81551360]

約数ペア:

[(1, 81551360), (2, 40775680), (4, 20387840), (5, 16310272), (8, 10193920), (10, 8155136), (11, 7413760), (16, 5096960), (20, 4077568), (22, 3706880), (32, 2548480), (40, 2038784), (44, 1853440), (55, 1482752), (64, 1274240), (80, 1019392), (88, 926720), (110, 741376), (128, 637120), (160, 509696), (176, 463360), (181, 450560), (220, 370688), (256, 318560), (320, 254848), (352, 231680), (362, 225280), (440, 185344), (512, 159280), (640, 127424), (704, 115840), (724, 112640), (880, 92672), (905, 90112), (1024, 79640), (1280, 63712), (1408, 57920), (1448, 56320), (1760, 46336), (1810, 45056), (1991, 40960), (2048, 39820), (2560, 31856), (2816, 28960), (2896, 28160), (3520, 23168), (3620, 22528), (3982, 20480), (4096, 19910), (5120, 15928), (5632, 14480), (5792, 14080), (7040, 11584), (7240, 11264), (7964, 10240), (8192, 9955)]