20467520

素因数分解:

$2^6\times 5^1\times {\mathrm{167}}^1\times {\mathrm{383}}^1$

素因数の和:567

約数の個数: 56

約数和(自身を含む): 49158144

約数和(自身を除く): 28690624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 167, 320, 334, 383, 668, 766, 835, 1336, 1532, 1670, 1915, 2672, 3064, 3340, 3830, 5344, 6128, 6680, 7660, 10688, 12256, 13360, 15320, 24512, 26720, 30640, 53440, 61280, 63961, 122560, 127922, 255844, 319805, 511688, 639610, 1023376, 1279220, 2046752, 2558440, 4093504, 5116880, 10233760, 20467520]

約数ペア:

[(1, 20467520), (2, 10233760), (4, 5116880), (5, 4093504), (8, 2558440), (10, 2046752), (16, 1279220), (20, 1023376), (32, 639610), (40, 511688), (64, 319805), (80, 255844), (160, 127922), (167, 122560), (320, 63961), (334, 61280), (383, 53440), (668, 30640), (766, 26720), (835, 24512), (1336, 15320), (1532, 13360), (1670, 12256), (1915, 10688), (2672, 7660), (3064, 6680), (3340, 6128), (3830, 5344)]