128022820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{2143}}^1$

素因数の和:2284

約数の個数: 48

約数和(自身を含む): 280949760

約数和(自身を除く): 152926940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 103, 116, 145, 206, 290, 412, 515, 580, 1030, 2060, 2143, 2987, 4286, 5974, 8572, 10715, 11948, 14935, 21430, 29870, 42860, 59740, 62147, 124294, 220729, 248588, 310735, 441458, 621470, 882916, 1103645, 1242940, 2207290, 4414580, 6401141, 12802282, 25604564, 32005705, 64011410, 128022820]

約数ペア:

[(1, 128022820), (2, 64011410), (4, 32005705), (5, 25604564), (10, 12802282), (20, 6401141), (29, 4414580), (58, 2207290), (103, 1242940), (116, 1103645), (145, 882916), (206, 621470), (290, 441458), (412, 310735), (515, 248588), (580, 220729), (1030, 124294), (2060, 62147), (2143, 59740), (2987, 42860), (4286, 29870), (5974, 21430), (8572, 14935), (10715, 11948)]