25256840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90203}}^1$

素因数の和:90221

約数の個数: 32

約数和(自身を含む): 64946880

約数和(自身を除く): 39690040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90203, 180406, 360812, 451015, 631421, 721624, 902030, 1262842, 1804060, 2525684, 3157105, 3608120, 5051368, 6314210, 12628420, 25256840]

約数ペア:

[(1, 25256840), (2, 12628420), (4, 6314210), (5, 5051368), (7, 3608120), (8, 3157105), (10, 2525684), (14, 1804060), (20, 1262842), (28, 902030), (35, 721624), (40, 631421), (56, 451015), (70, 360812), (140, 180406), (280, 90203)]