15956440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9277}}^1$

素因数の和:9331

約数の個数: 32

約数和(自身を含む): 36740880

約数和(自身を除く): 20784440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9277, 18554, 37108, 46385, 74216, 92770, 185540, 371080, 398911, 797822, 1595644, 1994555, 3191288, 3989110, 7978220, 15956440]

約数ペア:

[(1, 15956440), (2, 7978220), (4, 3989110), (5, 3191288), (8, 1994555), (10, 1595644), (20, 797822), (40, 398911), (43, 371080), (86, 185540), (172, 92770), (215, 74216), (344, 46385), (430, 37108), (860, 18554), (1720, 9277)]