393003440

素因数分解:

$2^4\times 5^1\times {\mathrm{4912543}}^1$

素因数の和:4912556

約数の個数: 20

約数和(自身を含む): 913733184

約数和(自身を除く): 520729744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4912543, 9825086, 19650172, 24562715, 39300344, 49125430, 78600688, 98250860, 196501720, 393003440]

約数ペア:

[(1, 393003440), (2, 196501720), (4, 98250860), (5, 78600688), (8, 49125430), (10, 39300344), (16, 24562715), (20, 19650172), (40, 9825086), (80, 4912543)]