127119980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1409}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 288519840

約数和(自身を除く): 161399860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 347, 694, 1388, 1409, 1735, 2818, 3470, 4511, 5636, 6940, 7045, 9022, 14090, 18044, 18317, 22555, 28180, 36634, 45110, 73268, 90220, 91585, 183170, 366340, 488923, 977846, 1955692, 2444615, 4889230, 6355999, 9778460, 12711998, 25423996, 31779995, 63559990, 127119980]

約数ペア:

[(1, 127119980), (2, 63559990), (4, 31779995), (5, 25423996), (10, 12711998), (13, 9778460), (20, 6355999), (26, 4889230), (52, 2444615), (65, 1955692), (130, 977846), (260, 488923), (347, 366340), (694, 183170), (1388, 91585), (1409, 90220), (1735, 73268), (2818, 45110), (3470, 36634), (4511, 28180), (5636, 22555), (6940, 18317), (7045, 18044), (9022, 14090)]