31538020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{38461}}^1$

素因数の和:38511

約数の個数: 24

約数和(自身を含む): 67846968

約数和(自身を除く): 36308948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 38461, 76922, 153844, 192305, 384610, 769220, 1576901, 3153802, 6307604, 7884505, 15769010, 31538020]

約数ペア:

[(1, 31538020), (2, 15769010), (4, 7884505), (5, 6307604), (10, 3153802), (20, 1576901), (41, 769220), (82, 384610), (164, 192305), (205, 153844), (410, 76922), (820, 38461)]