28011520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5471}}^1$

素因数の和:5496

約数の個数: 44

約数和(自身を含む): 67207104

約数和(自身を除く): 39195584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5471, 10942, 21884, 27355, 43768, 54710, 87536, 109420, 175072, 218840, 350144, 437680, 700288, 875360, 1400576, 1750720, 2801152, 3501440, 5602304, 7002880, 14005760, 28011520]

約数ペア:

[(1, 28011520), (2, 14005760), (4, 7002880), (5, 5602304), (8, 3501440), (10, 2801152), (16, 1750720), (20, 1400576), (32, 875360), (40, 700288), (64, 437680), (80, 350144), (128, 218840), (160, 175072), (256, 109420), (320, 87536), (512, 54710), (640, 43768), (1024, 27355), (1280, 21884), (2560, 10942), (5120, 5471)]