399799678

素因数分解:

$2^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1\times {\mathrm{4621}}^1$

素因数の和:5043

約数の個数: 16

約数和(自身を含む): 605666880

約数和(自身を除く): 205867202

約数列:

[1, 2, 181, 239, 362, 478, 4621, 9242, 43259, 86518, 836401, 1104419, 1672802, 2208838, 199899839, 399799678]

約数ペア:

[(1, 399799678), (2, 199899839), (181, 2208838), (239, 1672802), (362, 1104419), (478, 836401), (4621, 86518), (9242, 43259)]