131655520

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8147}}^1$

素因数の和:8263

約数の個数: 48

約数和(自身を含む): 314154288

約数和(自身を除く): 182498768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 8080, 8147, 16160, 16294, 32588, 40735, 65176, 81470, 130352, 162940, 260704, 325880, 651760, 822847, 1303520, 1645694, 3291388, 4114235, 6582776, 8228470, 13165552, 16456940, 26331104, 32913880, 65827760, 131655520]

約数ペア:

[(1, 131655520), (2, 65827760), (4, 32913880), (5, 26331104), (8, 16456940), (10, 13165552), (16, 8228470), (20, 6582776), (32, 4114235), (40, 3291388), (80, 1645694), (101, 1303520), (160, 822847), (202, 651760), (404, 325880), (505, 260704), (808, 162940), (1010, 130352), (1616, 81470), (2020, 65176), (3232, 40735), (4040, 32588), (8080, 16294), (8147, 16160)]