26668520

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1021}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 60154920

約数和(自身を除く): 33486400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1021, 1306, 2042, 2612, 3265, 4084, 5105, 5224, 6530, 8168, 10210, 13060, 20420, 26120, 40840, 666713, 1333426, 2666852, 3333565, 5333704, 6667130, 13334260, 26668520]

約数ペア:

[(1, 26668520), (2, 13334260), (4, 6667130), (5, 5333704), (8, 3333565), (10, 2666852), (20, 1333426), (40, 666713), (653, 40840), (1021, 26120), (1306, 20420), (2042, 13060), (2612, 10210), (3265, 8168), (4084, 6530), (5105, 5224)]