123120640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:337

約数の個数: 88

約数和(自身を含む): 299189520

約数和(自身を除く): 176068880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 173, 256, 278, 320, 346, 512, 556, 640, 692, 695, 865, 1024, 1112, 1280, 1384, 1390, 1730, 2224, 2560, 2768, 2780, 3460, 4448, 5120, 5536, 5560, 6920, 8896, 11072, 11120, 13840, 17792, 22144, 22240, 24047, 27680, 35584, 44288, 44480, 48094, 55360, 71168, 88576, 88960, 96188, 110720, 120235, 142336, 177152, 177920, 192376, 221440, 240470, 355840, 384752, 442880, 480940, 711680, 769504, 885760, 961880, 1539008, 1923760, 3078016, 3847520, 6156032, 7695040, 12312064, 15390080, 24624128, 30780160, 61560320, 123120640]

約数ペア:

[(1, 123120640), (2, 61560320), (4, 30780160), (5, 24624128), (8, 15390080), (10, 12312064), (16, 7695040), (20, 6156032), (32, 3847520), (40, 3078016), (64, 1923760), (80, 1539008), (128, 961880), (139, 885760), (160, 769504), (173, 711680), (256, 480940), (278, 442880), (320, 384752), (346, 355840), (512, 240470), (556, 221440), (640, 192376), (692, 177920), (695, 177152), (865, 142336), (1024, 120235), (1112, 110720), (1280, 96188), (1384, 88960), (1390, 88576), (1730, 71168), (2224, 55360), (2560, 48094), (2768, 44480), (2780, 44288), (3460, 35584), (4448, 27680), (5120, 24047), (5536, 22240), (5560, 22144), (6920, 17792), (8896, 13840), (11072, 11120)]