71271980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{274123}}^1$

素因数の和:274145

約数の個数: 24

約数和(自身を含む): 161184912

約数和(自身を除く): 89912932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 274123, 548246, 1096492, 1370615, 2741230, 3563599, 5482460, 7127198, 14254396, 17817995, 35635990, 71271980]

約数ペア:

[(1, 71271980), (2, 35635990), (4, 17817995), (5, 14254396), (10, 7127198), (13, 5482460), (20, 3563599), (26, 2741230), (52, 1370615), (65, 1096492), (130, 548246), (260, 274123)]