20173990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17980250

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 239, 367, 478, 734, 1195, 1835, 2390, 3670, 5497, 8441, 10994, 16882, 27485, 42205, 54970, 84410, 87713, 175426, 438565, 877130, 2017399, 4034798, 10086995, 20173990]

約数ペア:

[(1, 20173990), (2, 10086995), (5, 4034798), (10, 2017399), (23, 877130), (46, 438565), (115, 175426), (230, 87713), (239, 84410), (367, 54970), (478, 42205), (734, 27485), (1195, 16882), (1835, 10994), (2390, 8441), (3670, 5497)]