19486720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 51302160

約数和(自身を除く): 31815440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 173, 176, 220, 256, 320, 346, 352, 440, 512, 640, 692, 704, 865, 880, 1024, 1280, 1384, 1408, 1730, 1760, 1903, 2048, 2560, 2768, 2816, 3460, 3520, 3806, 5120, 5536, 5632, 6920, 7040, 7612, 9515, 10240, 11072, 11264, 13840, 14080, 15224, 19030, 22144, 22528, 27680, 28160, 30448, 38060, 44288, 55360, 56320, 60896, 76120, 88576, 110720, 112640, 121792, 152240, 177152, 221440, 243584, 304480, 354304, 442880, 487168, 608960, 885760, 974336, 1217920, 1771520, 1948672, 2435840, 3897344, 4871680, 9743360, 19486720]

約数ペア:

[(1, 19486720), (2, 9743360), (4, 4871680), (5, 3897344), (8, 2435840), (10, 1948672), (11, 1771520), (16, 1217920), (20, 974336), (22, 885760), (32, 608960), (40, 487168), (44, 442880), (55, 354304), (64, 304480), (80, 243584), (88, 221440), (110, 177152), (128, 152240), (160, 121792), (173, 112640), (176, 110720), (220, 88576), (256, 76120), (320, 60896), (346, 56320), (352, 55360), (440, 44288), (512, 38060), (640, 30448), (692, 28160), (704, 27680), (865, 22528), (880, 22144), (1024, 19030), (1280, 15224), (1384, 14080), (1408, 13840), (1730, 11264), (1760, 11072), (1903, 10240), (2048, 9515), (2560, 7612), (2768, 7040), (2816, 6920), (3460, 5632), (3520, 5536), (3806, 5120)]