28193240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17191}}^1$

素因数の和:17243

約数の個数: 32

約数和(自身を含む): 64985760

約数和(自身を除く): 36792520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17191, 34382, 68764, 85955, 137528, 171910, 343820, 687640, 704831, 1409662, 2819324, 3524155, 5638648, 7048310, 14096620, 28193240]

約数ペア:

[(1, 28193240), (2, 14096620), (4, 7048310), (5, 5638648), (8, 3524155), (10, 2819324), (20, 1409662), (40, 704831), (41, 687640), (82, 343820), (164, 171910), (205, 137528), (328, 85955), (410, 68764), (820, 34382), (1640, 17191)]