669968260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2576801}}^1$

素因数の和:2576823

約数の個数: 24

約数和(自身を含む): 1515159576

約数和(自身を除く): 845191316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2576801, 5153602, 10307204, 12884005, 25768010, 33498413, 51536020, 66996826, 133993652, 167492065, 334984130, 669968260]

約数ペア:

[(1, 669968260), (2, 334984130), (4, 167492065), (5, 133993652), (10, 66996826), (13, 51536020), (20, 33498413), (26, 25768010), (52, 12884005), (65, 10307204), (130, 5153602), (260, 2576801)]