25569920

素因数分解:

$2^7\times 5^1\times {\mathrm{39953}}^1$

素因数の和:39972

約数の個数: 32

約数和(自身を含む): 61129620

約数和(自身を除く): 35559700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 39953, 79906, 159812, 199765, 319624, 399530, 639248, 799060, 1278496, 1598120, 2556992, 3196240, 5113984, 6392480, 12784960, 25569920]

約数ペア:

[(1, 25569920), (2, 12784960), (4, 6392480), (5, 5113984), (8, 3196240), (10, 2556992), (16, 1598120), (20, 1278496), (32, 799060), (40, 639248), (64, 399530), (80, 319624), (128, 199765), (160, 159812), (320, 79906), (640, 39953)]