2772280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{9901}}^1$

素因数の和:9919

約数の個数: 32

約数和(自身を含む): 7129440

約数和(自身を除く): 4357160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 9901, 19802, 39604, 49505, 69307, 79208, 99010, 138614, 198020, 277228, 346535, 396040, 554456, 693070, 1386140, 2772280]

約数ペア:

[(1, 2772280), (2, 1386140), (4, 693070), (5, 554456), (7, 396040), (8, 346535), (10, 277228), (14, 198020), (20, 138614), (28, 99010), (35, 79208), (40, 69307), (56, 49505), (70, 39604), (140, 19802), (280, 9901)]