647242000

素因数分解:

$2^4\times 5^3\times {\mathrm{109}}^1\times {\mathrm{2969}}^1$

素因数の和:3101

約数の個数: 80

約数和(自身を含む): 1579921200

約数和(自身を除く): 932679200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 125, 200, 218, 250, 400, 436, 500, 545, 872, 1000, 1090, 1744, 2000, 2180, 2725, 2969, 4360, 5450, 5938, 8720, 10900, 11876, 13625, 14845, 21800, 23752, 27250, 29690, 43600, 47504, 54500, 59380, 74225, 109000, 118760, 148450, 218000, 237520, 296900, 323621, 371125, 593800, 647242, 742250, 1187600, 1294484, 1484500, 1618105, 2588968, 2969000, 3236210, 5177936, 5938000, 6472420, 8090525, 12944840, 16181050, 25889680, 32362100, 40452625, 64724200, 80905250, 129448400, 161810500, 323621000, 647242000]

約数ペア:

[(1, 647242000), (2, 323621000), (4, 161810500), (5, 129448400), (8, 80905250), (10, 64724200), (16, 40452625), (20, 32362100), (25, 25889680), (40, 16181050), (50, 12944840), (80, 8090525), (100, 6472420), (109, 5938000), (125, 5177936), (200, 3236210), (218, 2969000), (250, 2588968), (400, 1618105), (436, 1484500), (500, 1294484), (545, 1187600), (872, 742250), (1000, 647242), (1090, 593800), (1744, 371125), (2000, 323621), (2180, 296900), (2725, 237520), (2969, 218000), (4360, 148450), (5450, 118760), (5938, 109000), (8720, 74225), (10900, 59380), (11876, 54500), (13625, 47504), (14845, 43600), (21800, 29690), (23752, 27250)]