38912020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{557}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 93744000

約数和(自身を除く): 54831980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 557, 998, 1114, 1996, 2228, 2495, 2785, 3493, 3899, 4990, 5570, 6986, 7798, 9980, 11140, 13972, 15596, 17465, 19495, 34930, 38990, 69860, 77980, 277943, 555886, 1111772, 1389715, 1945601, 2779430, 3891202, 5558860, 7782404, 9728005, 19456010, 38912020]

約数ペア:

[(1, 38912020), (2, 19456010), (4, 9728005), (5, 7782404), (7, 5558860), (10, 3891202), (14, 2779430), (20, 1945601), (28, 1389715), (35, 1111772), (70, 555886), (140, 277943), (499, 77980), (557, 69860), (998, 38990), (1114, 34930), (1996, 19495), (2228, 17465), (2495, 15596), (2785, 13972), (3493, 11140), (3899, 9980), (4990, 7798), (5570, 6986)]