19945970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1013}}^1$

素因数の和:1210

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 19478350

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1013, 1790, 1969, 2026, 3938, 5065, 9845, 10130, 11143, 19690, 22286, 55715, 111430, 181327, 362654, 906635, 1813270, 1994597, 3989194, 9972985, 19945970]

約数ペア:

[(1, 19945970), (2, 9972985), (5, 3989194), (10, 1994597), (11, 1813270), (22, 906635), (55, 362654), (110, 181327), (179, 111430), (358, 55715), (895, 22286), (1013, 19690), (1790, 11143), (1969, 10130), (2026, 9845), (3938, 5065)]