25400000

素因数分解:

$2^6\times 5^5\times {\mathrm{127}}^1$

素因数の和:164

約数の個数: 84

約数和(自身を含む): 63495936

約数和(自身を除く): 38095936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 127, 160, 200, 250, 254, 320, 400, 500, 508, 625, 635, 800, 1000, 1016, 1250, 1270, 1600, 2000, 2032, 2500, 2540, 3125, 3175, 4000, 4064, 5000, 5080, 6250, 6350, 8000, 8128, 10000, 10160, 12500, 12700, 15875, 20000, 20320, 25000, 25400, 31750, 40000, 40640, 50000, 50800, 63500, 79375, 100000, 101600, 127000, 158750, 200000, 203200, 254000, 317500, 396875, 508000, 635000, 793750, 1016000, 1270000, 1587500, 2540000, 3175000, 5080000, 6350000, 12700000, 25400000]

約数ペア:

[(1, 25400000), (2, 12700000), (4, 6350000), (5, 5080000), (8, 3175000), (10, 2540000), (16, 1587500), (20, 1270000), (25, 1016000), (32, 793750), (40, 635000), (50, 508000), (64, 396875), (80, 317500), (100, 254000), (125, 203200), (127, 200000), (160, 158750), (200, 127000), (250, 101600), (254, 100000), (320, 79375), (400, 63500), (500, 50800), (508, 50000), (625, 40640), (635, 40000), (800, 31750), (1000, 25400), (1016, 25000), (1250, 20320), (1270, 20000), (1600, 15875), (2000, 12700), (2032, 12500), (2500, 10160), (2540, 10000), (3125, 8128), (3175, 8000), (4000, 6350), (4064, 6250), (5000, 5080)]