389619520

素因数分解:

$2^6\times 5^1\times {\mathrm{1217561}}^1$

素因数の和:1217578

約数の個数: 28

約数和(自身を含む): 927782244

約数和(自身を除く): 538162724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1217561, 2435122, 4870244, 6087805, 9740488, 12175610, 19480976, 24351220, 38961952, 48702440, 77923904, 97404880, 194809760, 389619520]

約数ペア:

[(1, 389619520), (2, 194809760), (4, 97404880), (5, 77923904), (8, 48702440), (10, 38961952), (16, 24351220), (20, 19480976), (32, 12175610), (40, 9740488), (64, 6087805), (80, 4870244), (160, 2435122), (320, 1217561)]