1989260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1093}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 5146176

約数和(自身を除く): 3156916

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1093, 1820, 2186, 4372, 5465, 7651, 10930, 14209, 15302, 21860, 28418, 30604, 38255, 56836, 71045, 76510, 99463, 142090, 153020, 198926, 284180, 397852, 497315, 994630, 1989260]

約数ペア:

[(1, 1989260), (2, 994630), (4, 497315), (5, 397852), (7, 284180), (10, 198926), (13, 153020), (14, 142090), (20, 99463), (26, 76510), (28, 71045), (35, 56836), (52, 38255), (65, 30604), (70, 28418), (91, 21860), (130, 15302), (140, 14209), (182, 10930), (260, 7651), (364, 5465), (455, 4372), (910, 2186), (1093, 1820)]