28949480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103391}}^1$

素因数の和:103409

約数の個数: 32

約数和(自身を含む): 74442240

約数和(自身を除く): 45492760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 103391, 206782, 413564, 516955, 723737, 827128, 1033910, 1447474, 2067820, 2894948, 3618685, 4135640, 5789896, 7237370, 14474740, 28949480]

約数ペア:

[(1, 28949480), (2, 14474740), (4, 7237370), (5, 5789896), (7, 4135640), (8, 3618685), (10, 2894948), (14, 2067820), (20, 1447474), (28, 1033910), (35, 827128), (40, 723737), (56, 516955), (70, 413564), (140, 206782), (280, 103391)]