25687040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:227

約数の個数: 88

約数和(自身を含む): 64112040

約数和(自身を除く): 38425000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 173, 232, 256, 290, 320, 346, 464, 512, 580, 640, 692, 865, 928, 1024, 1160, 1280, 1384, 1730, 1856, 2320, 2560, 2768, 3460, 3712, 4640, 5017, 5120, 5536, 6920, 7424, 9280, 10034, 11072, 13840, 14848, 18560, 20068, 22144, 25085, 27680, 29696, 37120, 40136, 44288, 50170, 55360, 74240, 80272, 88576, 100340, 110720, 148480, 160544, 177152, 200680, 221440, 321088, 401360, 442880, 642176, 802720, 885760, 1284352, 1605440, 2568704, 3210880, 5137408, 6421760, 12843520, 25687040]

約数ペア:

[(1, 25687040), (2, 12843520), (4, 6421760), (5, 5137408), (8, 3210880), (10, 2568704), (16, 1605440), (20, 1284352), (29, 885760), (32, 802720), (40, 642176), (58, 442880), (64, 401360), (80, 321088), (116, 221440), (128, 200680), (145, 177152), (160, 160544), (173, 148480), (232, 110720), (256, 100340), (290, 88576), (320, 80272), (346, 74240), (464, 55360), (512, 50170), (580, 44288), (640, 40136), (692, 37120), (865, 29696), (928, 27680), (1024, 25085), (1160, 22144), (1280, 20068), (1384, 18560), (1730, 14848), (1856, 13840), (2320, 11072), (2560, 10034), (2768, 9280), (3460, 7424), (3712, 6920), (4640, 5536), (5017, 5120)]