28558000

素因数分解:

$2^4\times 5^3\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 70218720

約数和(自身を除く): 41660720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 125, 131, 200, 218, 250, 262, 400, 436, 500, 524, 545, 655, 872, 1000, 1048, 1090, 1310, 1744, 2000, 2096, 2180, 2620, 2725, 3275, 4360, 5240, 5450, 6550, 8720, 10480, 10900, 13100, 13625, 14279, 16375, 21800, 26200, 27250, 28558, 32750, 43600, 52400, 54500, 57116, 65500, 71395, 109000, 114232, 131000, 142790, 218000, 228464, 262000, 285580, 356975, 571160, 713950, 1142320, 1427900, 1784875, 2855800, 3569750, 5711600, 7139500, 14279000, 28558000]

約数ペア:

[(1, 28558000), (2, 14279000), (4, 7139500), (5, 5711600), (8, 3569750), (10, 2855800), (16, 1784875), (20, 1427900), (25, 1142320), (40, 713950), (50, 571160), (80, 356975), (100, 285580), (109, 262000), (125, 228464), (131, 218000), (200, 142790), (218, 131000), (250, 114232), (262, 109000), (400, 71395), (436, 65500), (500, 57116), (524, 54500), (545, 52400), (655, 43600), (872, 32750), (1000, 28558), (1048, 27250), (1090, 26200), (1310, 21800), (1744, 16375), (2000, 14279), (2096, 13625), (2180, 13100), (2620, 10900), (2725, 10480), (3275, 8720), (4360, 6550), (5240, 5450)]