1520991880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{717449}}^1$

素因数の和:717513

約数の個数: 32

約数和(自身を含む): 3486807000

約数和(自身を除く): 1965815120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 717449, 1434898, 2869796, 3587245, 5739592, 7174490, 14348980, 28697960, 38024797, 76049594, 152099188, 190123985, 304198376, 380247970, 760495940, 1520991880]

約数ペア:

[(1, 1520991880), (2, 760495940), (4, 380247970), (5, 304198376), (8, 190123985), (10, 152099188), (20, 76049594), (40, 38024797), (53, 28697960), (106, 14348980), (212, 7174490), (265, 5739592), (424, 3587245), (530, 2869796), (1060, 1434898), (2120, 717449)]