131213800

素因数分解:

$2^3\times 5^2\times {\mathrm{743}}^1\times {\mathrm{883}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 305828640

約数和(自身を除く): 174614840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 743, 883, 1486, 1766, 2972, 3532, 3715, 4415, 5944, 7064, 7430, 8830, 14860, 17660, 18575, 22075, 29720, 35320, 37150, 44150, 74300, 88300, 148600, 176600, 656069, 1312138, 2624276, 3280345, 5248552, 6560690, 13121380, 16401725, 26242760, 32803450, 65606900, 131213800]

約数ペア:

[(1, 131213800), (2, 65606900), (4, 32803450), (5, 26242760), (8, 16401725), (10, 13121380), (20, 6560690), (25, 5248552), (40, 3280345), (50, 2624276), (100, 1312138), (200, 656069), (743, 176600), (883, 148600), (1486, 88300), (1766, 74300), (2972, 44150), (3532, 37150), (3715, 35320), (4415, 29720), (5944, 22075), (7064, 18575), (7430, 17660), (8830, 14860)]