7139500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:259

約数の個数: 48

約数和(自身を含む): 15855840

約数和(自身を除く): 8716340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 131, 218, 250, 262, 436, 500, 524, 545, 655, 1090, 1310, 2180, 2620, 2725, 3275, 5450, 6550, 10900, 13100, 13625, 14279, 16375, 27250, 28558, 32750, 54500, 57116, 65500, 71395, 142790, 285580, 356975, 713950, 1427900, 1784875, 3569750, 7139500]

約数ペア:

[(1, 7139500), (2, 3569750), (4, 1784875), (5, 1427900), (10, 713950), (20, 356975), (25, 285580), (50, 142790), (100, 71395), (109, 65500), (125, 57116), (131, 54500), (218, 32750), (250, 28558), (262, 27250), (436, 16375), (500, 14279), (524, 13625), (545, 13100), (655, 10900), (1090, 6550), (1310, 5450), (2180, 3275), (2620, 2725)]