256280480

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15551}}^1$

素因数の和:15669

約数の個数: 48

約数和(自身を含む): 611380224

約数和(自身を除く): 355099744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1648, 2060, 3296, 4120, 8240, 15551, 16480, 31102, 62204, 77755, 124408, 155510, 248816, 311020, 497632, 622040, 1244080, 1601753, 2488160, 3203506, 6407012, 8008765, 12814024, 16017530, 25628048, 32035060, 51256096, 64070120, 128140240, 256280480]

約数ペア:

[(1, 256280480), (2, 128140240), (4, 64070120), (5, 51256096), (8, 32035060), (10, 25628048), (16, 16017530), (20, 12814024), (32, 8008765), (40, 6407012), (80, 3203506), (103, 2488160), (160, 1601753), (206, 1244080), (412, 622040), (515, 497632), (824, 311020), (1030, 248816), (1648, 155510), (2060, 124408), (3296, 77755), (4120, 62204), (8240, 31102), (15551, 16480)]