39979900

素因数分解:

$2^2\times 5^2\times {\mathrm{541}}^1\times {\mathrm{739}}^1$

素因数の和:1294

約数の個数: 36

約数和(自身を含む): 87034360

約数和(自身を除く): 47054460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 541, 739, 1082, 1478, 2164, 2705, 2956, 3695, 5410, 7390, 10820, 13525, 14780, 18475, 27050, 36950, 54100, 73900, 399799, 799598, 1599196, 1998995, 3997990, 7995980, 9994975, 19989950, 39979900]

約数ペア:

[(1, 39979900), (2, 19989950), (4, 9994975), (5, 7995980), (10, 3997990), (20, 1998995), (25, 1599196), (50, 799598), (100, 399799), (541, 73900), (739, 54100), (1082, 36950), (1478, 27050), (2164, 18475), (2705, 14780), (2956, 13525), (3695, 10820), (5410, 7390)]