131359280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{126307}}^1$

素因数の和:126333

約数の個数: 40

約数和(自身を含む): 328906032

約数和(自身を除く): 197546752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 126307, 252614, 505228, 631535, 1010456, 1263070, 1641991, 2020912, 2526140, 3283982, 5052280, 6567964, 8209955, 10104560, 13135928, 16419910, 26271856, 32839820, 65679640, 131359280]

約数ペア:

[(1, 131359280), (2, 65679640), (4, 32839820), (5, 26271856), (8, 16419910), (10, 13135928), (13, 10104560), (16, 8209955), (20, 6567964), (26, 5052280), (40, 3283982), (52, 2526140), (65, 2020912), (80, 1641991), (104, 1263070), (130, 1010456), (208, 631535), (260, 505228), (520, 252614), (1040, 126307)]