201780020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{776077}}^1$

素因数の和:776099

約数の個数: 24

約数和(自身を含む): 456333864

約数和(自身を除く): 254553844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 776077, 1552154, 3104308, 3880385, 7760770, 10089001, 15521540, 20178002, 40356004, 50445005, 100890010, 201780020]

約数ペア:

[(1, 201780020), (2, 100890010), (4, 50445005), (5, 40356004), (10, 20178002), (13, 15521540), (20, 10089001), (26, 7760770), (52, 3880385), (65, 3104308), (130, 1552154), (260, 776077)]