8742640

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1061}}^1$

素因数の和:1177

約数の個数: 40

約数和(自身を含む): 20543328

約数和(自身を除く): 11800688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1061, 1648, 2060, 2122, 4120, 4244, 5305, 8240, 8488, 10610, 16976, 21220, 42440, 84880, 109283, 218566, 437132, 546415, 874264, 1092830, 1748528, 2185660, 4371320, 8742640]

約数ペア:

[(1, 8742640), (2, 4371320), (4, 2185660), (5, 1748528), (8, 1092830), (10, 874264), (16, 546415), (20, 437132), (40, 218566), (80, 109283), (103, 84880), (206, 42440), (412, 21220), (515, 16976), (824, 10610), (1030, 8488), (1061, 8240), (1648, 5305), (2060, 4244), (2122, 4120)]