217438130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{238943}}^1$

素因数の和:238970

約数の個数: 32

約数和(自身を含む): 481711104

約数和(自身を除く): 264272974

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 238943, 477886, 1194715, 1672601, 2389430, 3106259, 3345202, 6212518, 8363005, 15531295, 16726010, 21743813, 31062590, 43487626, 108719065, 217438130]

約数ペア:

[(1, 217438130), (2, 108719065), (5, 43487626), (7, 31062590), (10, 21743813), (13, 16726010), (14, 15531295), (26, 8363005), (35, 6212518), (65, 3345202), (70, 3106259), (91, 2389430), (130, 1672601), (182, 1194715), (455, 477886), (910, 238943)]