25217680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3121}}^1$

素因数の和:3235

約数の個数: 40

約数和(自身を含む): 59230584

約数和(自身を除く): 34012904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 3121, 4040, 6242, 8080, 12484, 15605, 24968, 31210, 49936, 62420, 124840, 249680, 315221, 630442, 1260884, 1576105, 2521768, 3152210, 5043536, 6304420, 12608840, 25217680]

約数ペア:

[(1, 25217680), (2, 12608840), (4, 6304420), (5, 5043536), (8, 3152210), (10, 2521768), (16, 1576105), (20, 1260884), (40, 630442), (80, 315221), (101, 249680), (202, 124840), (404, 62420), (505, 49936), (808, 31210), (1010, 24968), (1616, 15605), (2020, 12484), (3121, 8080), (4040, 6242)]