491066920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{119191}}^1$

素因数の和:119305

約数の個数: 32

約数和(自身を含む): 1115637120

約数和(自身を除く): 624570200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 119191, 238382, 476764, 595955, 953528, 1191910, 2383820, 4767640, 12276673, 24553346, 49106692, 61383365, 98213384, 122766730, 245533460, 491066920]

約数ペア:

[(1, 491066920), (2, 245533460), (4, 122766730), (5, 98213384), (8, 61383365), (10, 49106692), (20, 24553346), (40, 12276673), (103, 4767640), (206, 2383820), (412, 1191910), (515, 953528), (824, 595955), (1030, 476764), (2060, 238382), (4120, 119191)]