131005040

素因数分解:

$2^4\times 5^1\times {\mathrm{1637563}}^1$

素因数の和:1637576

約数の個数: 20

約数和(自身を含む): 304586904

約数和(自身を除く): 173581864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1637563, 3275126, 6550252, 8187815, 13100504, 16375630, 26201008, 32751260, 65502520, 131005040]

約数ペア:

[(1, 131005040), (2, 65502520), (4, 32751260), (5, 26201008), (8, 16375630), (10, 13100504), (16, 8187815), (20, 6550252), (40, 3275126), (80, 1637563)]