131640040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20441}}^1$

素因数の和:20482

約数の個数: 64

約数和(自身を含む): 353237760

約数和(自身を除く): 221597720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 20441, 40882, 81764, 102205, 143087, 163528, 204410, 286174, 408820, 470143, 572348, 715435, 817640, 940286, 1144696, 1430870, 1880572, 2350715, 2861740, 3291001, 3761144, 4701430, 5723480, 6582002, 9402860, 13164004, 16455005, 18805720, 26328008, 32910010, 65820020, 131640040]

約数ペア:

[(1, 131640040), (2, 65820020), (4, 32910010), (5, 26328008), (7, 18805720), (8, 16455005), (10, 13164004), (14, 9402860), (20, 6582002), (23, 5723480), (28, 4701430), (35, 3761144), (40, 3291001), (46, 2861740), (56, 2350715), (70, 1880572), (92, 1430870), (115, 1144696), (140, 940286), (161, 817640), (184, 715435), (230, 572348), (280, 470143), (322, 408820), (460, 286174), (644, 204410), (805, 163528), (920, 143087), (1288, 102205), (1610, 81764), (3220, 40882), (6440, 20441)]