77742500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^2\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 90

約数和(自身を含む): 187594638

約数和(自身を除く): 109852138

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 257, 275, 484, 500, 514, 550, 605, 625, 1028, 1100, 1210, 1250, 1285, 1375, 2420, 2500, 2570, 2750, 2827, 3025, 5140, 5500, 5654, 6050, 6425, 6875, 11308, 12100, 12850, 13750, 14135, 15125, 25700, 27500, 28270, 30250, 31097, 32125, 56540, 60500, 62194, 64250, 70675, 75625, 124388, 128500, 141350, 151250, 155485, 160625, 282700, 302500, 310970, 321250, 353375, 621940, 642500, 706750, 777425, 1413500, 1554850, 1766875, 3109700, 3533750, 3887125, 7067500, 7774250, 15548500, 19435625, 38871250, 77742500]

約数ペア:

[(1, 77742500), (2, 38871250), (4, 19435625), (5, 15548500), (10, 7774250), (11, 7067500), (20, 3887125), (22, 3533750), (25, 3109700), (44, 1766875), (50, 1554850), (55, 1413500), (100, 777425), (110, 706750), (121, 642500), (125, 621940), (220, 353375), (242, 321250), (250, 310970), (257, 302500), (275, 282700), (484, 160625), (500, 155485), (514, 151250), (550, 141350), (605, 128500), (625, 124388), (1028, 75625), (1100, 70675), (1210, 64250), (1250, 62194), (1285, 60500), (1375, 56540), (2420, 32125), (2500, 31097), (2570, 30250), (2750, 28270), (2827, 27500), (3025, 25700), (5140, 15125), (5500, 14135), (5654, 13750), (6050, 12850), (6425, 12100), (6875, 11308)]