28557875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 9855565

約数列:

[1, 5, 17, 25, 85, 89, 125, 151, 425, 445, 755, 1513, 2125, 2225, 2567, 3775, 7565, 11125, 12835, 13439, 18875, 37825, 64175, 67195, 189125, 228463, 320875, 335975, 1142315, 1679875, 5711575, 28557875]

約数ペア:

[(1, 28557875), (5, 5711575), (17, 1679875), (25, 1142315), (85, 335975), (89, 320875), (125, 228463), (151, 189125), (425, 67195), (445, 64175), (755, 37825), (1513, 18875), (2125, 13439), (2225, 12835), (2567, 11125), (3775, 7565)]