28921480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103291}}^1$

素因数の和:103309

約数の個数: 32

約数和(自身を含む): 74370240

約数和(自身を除く): 45448760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 103291, 206582, 413164, 516455, 723037, 826328, 1032910, 1446074, 2065820, 2892148, 3615185, 4131640, 5784296, 7230370, 14460740, 28921480]

約数ペア:

[(1, 28921480), (2, 14460740), (4, 7230370), (5, 5784296), (7, 4131640), (8, 3615185), (10, 2892148), (14, 2065820), (20, 1446074), (28, 1032910), (35, 826328), (40, 723037), (56, 516455), (70, 413164), (140, 206582), (280, 103291)]