51914000

素因数分解:

$2^4\times 5^3\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 80

約数和(自身を含む): 127264176

約数和(自身を除く): 75350176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 125, 200, 202, 250, 257, 400, 404, 500, 505, 514, 808, 1000, 1010, 1028, 1285, 1616, 2000, 2020, 2056, 2525, 2570, 4040, 4112, 5050, 5140, 6425, 8080, 10100, 10280, 12625, 12850, 20200, 20560, 25250, 25700, 25957, 32125, 40400, 50500, 51400, 51914, 64250, 101000, 102800, 103828, 128500, 129785, 202000, 207656, 257000, 259570, 415312, 514000, 519140, 648925, 1038280, 1297850, 2076560, 2595700, 3244625, 5191400, 6489250, 10382800, 12978500, 25957000, 51914000]

約数ペア:

[(1, 51914000), (2, 25957000), (4, 12978500), (5, 10382800), (8, 6489250), (10, 5191400), (16, 3244625), (20, 2595700), (25, 2076560), (40, 1297850), (50, 1038280), (80, 648925), (100, 519140), (101, 514000), (125, 415312), (200, 259570), (202, 257000), (250, 207656), (257, 202000), (400, 129785), (404, 128500), (500, 103828), (505, 102800), (514, 101000), (808, 64250), (1000, 51914), (1010, 51400), (1028, 50500), (1285, 40400), (1616, 32125), (2000, 25957), (2020, 25700), (2056, 25250), (2525, 20560), (2570, 20200), (4040, 12850), (4112, 12625), (5050, 10280), (5140, 10100), (6425, 8080)]