207950920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{51473}}^1$

素因数の和:51585

約数の個数: 32

約数和(自身を含む): 472531320

約数和(自身を除く): 264580400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 51473, 102946, 205892, 257365, 411784, 514730, 1029460, 2058920, 5198773, 10397546, 20795092, 25993865, 41590184, 51987730, 103975460, 207950920]

約数ペア:

[(1, 207950920), (2, 103975460), (4, 51987730), (5, 41590184), (8, 25993865), (10, 20795092), (20, 10397546), (40, 5198773), (101, 2058920), (202, 1029460), (404, 514730), (505, 411784), (808, 257365), (1010, 205892), (2020, 102946), (4040, 51473)]