25957000

素因数分解:

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

素因数の和:379

約数の個数: 64

約数和(自身を含む): 61579440

約数和(自身を除く): 35622440

約数列:

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

約数ペア:

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