20878130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22943}}^1$

素因数の和:22970

約数の個数: 32

約数和(自身を含む): 46255104

約数和(自身を除く): 25376974

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 22943, 45886, 114715, 160601, 229430, 298259, 321202, 596518, 803005, 1491295, 1606010, 2087813, 2982590, 4175626, 10439065, 20878130]

約数ペア:

[(1, 20878130), (2, 10439065), (5, 4175626), (7, 2982590), (10, 2087813), (13, 1606010), (14, 1491295), (26, 803005), (35, 596518), (65, 321202), (70, 298259), (91, 229430), (130, 160601), (182, 114715), (455, 45886), (910, 22943)]