28985745

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 47653632

約数和(自身を除く): 18667887

約数列:

[1, 3, 5, 15, 73, 103, 219, 257, 309, 365, 515, 771, 1095, 1285, 1545, 3855, 7519, 18761, 22557, 26471, 37595, 56283, 79413, 93805, 112785, 132355, 281415, 397065, 1932383, 5797149, 9661915, 28985745]

約数ペア:

[(1, 28985745), (3, 9661915), (5, 5797149), (15, 1932383), (73, 397065), (103, 281415), (219, 132355), (257, 112785), (309, 93805), (365, 79413), (515, 56283), (771, 37595), (1095, 26471), (1285, 22557), (1545, 18761), (3855, 7519)]