25266440

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2621}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 57107160

約数和(自身を除く): 31840720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 2621, 4820, 5242, 9640, 10484, 13105, 20968, 26210, 52420, 104840, 631661, 1263322, 2526644, 3158305, 5053288, 6316610, 12633220, 25266440]

約数ペア:

[(1, 25266440), (2, 12633220), (4, 6316610), (5, 5053288), (8, 3158305), (10, 2526644), (20, 1263322), (40, 631661), (241, 104840), (482, 52420), (964, 26210), (1205, 20968), (1928, 13105), (2410, 10484), (2621, 9640), (4820, 5242)]