12625000

素因数分解:

$2^3\times 5^6\times {\mathrm{101}}^1$

素因数の和:137

約数の個数: 56

約数和(自身を含む): 29882430

約数和(自身を除く): 17257430

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 125, 200, 202, 250, 404, 500, 505, 625, 808, 1000, 1010, 1250, 2020, 2500, 2525, 3125, 4040, 5000, 5050, 6250, 10100, 12500, 12625, 15625, 20200, 25000, 25250, 31250, 50500, 62500, 63125, 101000, 125000, 126250, 252500, 315625, 505000, 631250, 1262500, 1578125, 2525000, 3156250, 6312500, 12625000]

約数ペア:

[(1, 12625000), (2, 6312500), (4, 3156250), (5, 2525000), (8, 1578125), (10, 1262500), (20, 631250), (25, 505000), (40, 315625), (50, 252500), (100, 126250), (101, 125000), (125, 101000), (200, 63125), (202, 62500), (250, 50500), (404, 31250), (500, 25250), (505, 25000), (625, 20200), (808, 15625), (1000, 12625), (1010, 12500), (1250, 10100), (2020, 6250), (2500, 5050), (2525, 5000), (3125, 4040)]