406939780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1565153}}^1$

素因数の和:1565175

約数の個数: 24

約数和(自身を含む): 920310552

約数和(自身を除く): 513370772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1565153, 3130306, 6260612, 7825765, 15651530, 20346989, 31303060, 40693978, 81387956, 101734945, 203469890, 406939780]

約数ペア:

[(1, 406939780), (2, 203469890), (4, 101734945), (5, 81387956), (10, 40693978), (13, 31303060), (20, 20346989), (26, 15651530), (52, 7825765), (65, 6260612), (130, 3130306), (260, 1565153)]