28557680

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{733}}^1$

素因数の和:1233

約数の個数: 40

約数和(自身を含む): 66623712

約数和(自身を除く): 38066032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 733, 974, 1466, 1948, 2435, 2932, 3665, 3896, 4870, 5864, 7330, 7792, 9740, 11728, 14660, 19480, 29320, 38960, 58640, 356971, 713942, 1427884, 1784855, 2855768, 3569710, 5711536, 7139420, 14278840, 28557680]

約数ペア:

[(1, 28557680), (2, 14278840), (4, 7139420), (5, 5711536), (8, 3569710), (10, 2855768), (16, 1784855), (20, 1427884), (40, 713942), (80, 356971), (487, 58640), (733, 38960), (974, 29320), (1466, 19480), (1948, 14660), (2435, 11728), (2932, 9740), (3665, 7792), (3896, 7330), (4870, 5864)]