28452440

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1907}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 64223280

約数和(自身を除く): 35770840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 1907, 2984, 3730, 3814, 7460, 7628, 9535, 14920, 15256, 19070, 38140, 76280, 711311, 1422622, 2845244, 3556555, 5690488, 7113110, 14226220, 28452440]

約数ペア:

[(1, 28452440), (2, 14226220), (4, 7113110), (5, 5690488), (8, 3556555), (10, 2845244), (20, 1422622), (40, 711311), (373, 76280), (746, 38140), (1492, 19070), (1865, 15256), (1907, 14920), (2984, 9535), (3730, 7628), (3814, 7460)]