18931520

素因数分解:

$2^6\times 5^1\times {\mathrm{67}}^1\times {\mathrm{883}}^1$

素因数の和:967

約数の個数: 56

約数和(自身を含む): 45805344

約数和(自身を除く): 26873824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 134, 160, 268, 320, 335, 536, 670, 883, 1072, 1340, 1766, 2144, 2680, 3532, 4288, 4415, 5360, 7064, 8830, 10720, 14128, 17660, 21440, 28256, 35320, 56512, 59161, 70640, 118322, 141280, 236644, 282560, 295805, 473288, 591610, 946576, 1183220, 1893152, 2366440, 3786304, 4732880, 9465760, 18931520]

約数ペア:

[(1, 18931520), (2, 9465760), (4, 4732880), (5, 3786304), (8, 2366440), (10, 1893152), (16, 1183220), (20, 946576), (32, 591610), (40, 473288), (64, 295805), (67, 282560), (80, 236644), (134, 141280), (160, 118322), (268, 70640), (320, 59161), (335, 56512), (536, 35320), (670, 28256), (883, 21440), (1072, 17660), (1340, 14128), (1766, 10720), (2144, 8830), (2680, 7064), (3532, 5360), (4288, 4415)]