20290144

素因数分解:

$2^5\times 7^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:635

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 25674656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 239, 379, 478, 758, 956, 1516, 1673, 1912, 2653, 3032, 3346, 3824, 5306, 6064, 6692, 7648, 10612, 12128, 13384, 21224, 26768, 42448, 53536, 84896, 90581, 181162, 362324, 634067, 724648, 1268134, 1449296, 2536268, 2898592, 5072536, 10145072, 20290144]

約数ペア:

[(1, 20290144), (2, 10145072), (4, 5072536), (7, 2898592), (8, 2536268), (14, 1449296), (16, 1268134), (28, 724648), (32, 634067), (56, 362324), (112, 181162), (224, 90581), (239, 84896), (379, 53536), (478, 42448), (758, 26768), (956, 21224), (1516, 13384), (1673, 12128), (1912, 10612), (2653, 7648), (3032, 6692), (3346, 6064), (3824, 5306)]