138889408

素因数分解:

$2^6\times 7^1\times {\mathrm{310021}}^1$

素因数の和:310040

約数の個数: 28

約数和(自身を含む): 314982352

約数和(自身を除く): 176092944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 310021, 620042, 1240084, 2170147, 2480168, 4340294, 4960336, 8680588, 9920672, 17361176, 19841344, 34722352, 69444704, 138889408]

約数ペア:

[(1, 138889408), (2, 69444704), (4, 34722352), (7, 19841344), (8, 17361176), (14, 9920672), (16, 8680588), (28, 4960336), (32, 4340294), (56, 2480168), (64, 2170147), (112, 1240084), (224, 620042), (448, 310021)]