25564840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{91303}}^1$

素因数の和:91321

約数の個数: 32

約数和(自身を含む): 65738880

約数和(自身を除く): 40174040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 91303, 182606, 365212, 456515, 639121, 730424, 913030, 1278242, 1826060, 2556484, 3195605, 3652120, 5112968, 6391210, 12782420, 25564840]

約数ペア:

[(1, 25564840), (2, 12782420), (4, 6391210), (5, 5112968), (7, 3652120), (8, 3195605), (10, 2556484), (14, 1826060), (20, 1278242), (28, 913030), (35, 730424), (40, 639121), (56, 456515), (70, 365212), (140, 182606), (280, 91303)]