28734760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42257}}^1$

素因数の和:42285

約数の個数: 32

約数和(自身を含む): 68457960

約数和(自身を除く): 39723200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42257, 84514, 169028, 211285, 338056, 422570, 718369, 845140, 1436738, 1690280, 2873476, 3591845, 5746952, 7183690, 14367380, 28734760]

約数ペア:

[(1, 28734760), (2, 14367380), (4, 7183690), (5, 5746952), (8, 3591845), (10, 2873476), (17, 1690280), (20, 1436738), (34, 845140), (40, 718369), (68, 422570), (85, 338056), (136, 211285), (170, 169028), (340, 84514), (680, 42257)]