42939880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7723}}^1$

素因数の和:7873

約数の個数: 32

約数和(自身を含む): 97322400

約数和(自身を除く): 54382520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 7723, 15446, 30892, 38615, 61784, 77230, 154460, 308920, 1073497, 2146994, 4293988, 5367485, 8587976, 10734970, 21469940, 42939880]

約数ペア:

[(1, 42939880), (2, 21469940), (4, 10734970), (5, 8587976), (8, 5367485), (10, 4293988), (20, 2146994), (40, 1073497), (139, 308920), (278, 154460), (556, 77230), (695, 61784), (1112, 38615), (1390, 30892), (2780, 15446), (5560, 7723)]