2989870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 5876640

約数和(自身を除く): 2886770

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 211, 218, 422, 545, 1055, 1090, 1417, 2110, 2743, 2834, 5486, 7085, 13715, 14170, 22999, 27430, 45998, 114995, 229990, 298987, 597974, 1494935, 2989870]

約数ペア:

[(1, 2989870), (2, 1494935), (5, 597974), (10, 298987), (13, 229990), (26, 114995), (65, 45998), (109, 27430), (130, 22999), (211, 14170), (218, 13715), (422, 7085), (545, 5486), (1055, 2834), (1090, 2743), (1417, 2110)]