19864960

素因数分解:

$2^7\times 5^1\times {\mathrm{31039}}^1$

素因数の和:31058

約数の個数: 32

約数和(自身を含む): 47491200

約数和(自身を除く): 27626240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31039, 62078, 124156, 155195, 248312, 310390, 496624, 620780, 993248, 1241560, 1986496, 2483120, 3972992, 4966240, 9932480, 19864960]

約数ペア:

[(1, 19864960), (2, 9932480), (4, 4966240), (5, 3972992), (8, 2483120), (10, 1986496), (16, 1241560), (20, 993248), (32, 620780), (40, 496624), (64, 310390), (80, 248312), (128, 155195), (160, 124156), (320, 62078), (640, 31039)]