23171980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89123}}^1$

素因数の和:89145

約数の個数: 24

約数和(自身を含む): 52404912

約数和(自身を除く): 29232932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 89123, 178246, 356492, 445615, 891230, 1158599, 1782460, 2317198, 4634396, 5792995, 11585990, 23171980]

約数ペア:

[(1, 23171980), (2, 11585990), (4, 5792995), (5, 4634396), (10, 2317198), (13, 1782460), (20, 1158599), (26, 891230), (52, 445615), (65, 356492), (130, 178246), (260, 89123)]