127531880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{455471}}^1$

素因数の和:455489

約数の個数: 32

約数和(自身を含む): 327939840

約数和(自身を除く): 200407960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 455471, 910942, 1821884, 2277355, 3188297, 3643768, 4554710, 6376594, 9109420, 12753188, 15941485, 18218840, 25506376, 31882970, 63765940, 127531880]

約数ペア:

[(1, 127531880), (2, 63765940), (4, 31882970), (5, 25506376), (7, 18218840), (8, 15941485), (10, 12753188), (14, 9109420), (20, 6376594), (28, 4554710), (35, 3643768), (40, 3188297), (56, 2277355), (70, 1821884), (140, 910942), (280, 455471)]