25387300

素因数分解:

$2^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2140

約数の個数: 36

約数和(自身を含む): 55552000

約数和(自身を除く): 30164700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 127, 254, 508, 635, 1270, 1999, 2540, 3175, 3998, 6350, 7996, 9995, 12700, 19990, 39980, 49975, 99950, 199900, 253873, 507746, 1015492, 1269365, 2538730, 5077460, 6346825, 12693650, 25387300]

約数ペア:

[(1, 25387300), (2, 12693650), (4, 6346825), (5, 5077460), (10, 2538730), (20, 1269365), (25, 1015492), (50, 507746), (100, 253873), (127, 199900), (254, 99950), (508, 49975), (635, 39980), (1270, 19990), (1999, 12700), (2540, 9995), (3175, 7996), (3998, 6350)]