28814008

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 55598400

約数和(自身を除く): 26784392

約数列:

[1, 2, 4, 8, 47, 94, 188, 197, 376, 389, 394, 778, 788, 1556, 1576, 3112, 9259, 18283, 18518, 36566, 37036, 73132, 74072, 76633, 146264, 153266, 306532, 613064, 3601751, 7203502, 14407004, 28814008]

約数ペア:

[(1, 28814008), (2, 14407004), (4, 7203502), (8, 3601751), (47, 613064), (94, 306532), (188, 153266), (197, 146264), (376, 76633), (389, 74072), (394, 73132), (778, 37036), (788, 36566), (1556, 18518), (1576, 18283), (3112, 9259)]