20772416

素因数分解:

$2^6\times 7^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:451

約数の個数: 56

約数和(自身を含む): 47548800

約数和(自身を除く): 26776384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 199, 224, 233, 398, 448, 466, 796, 932, 1393, 1592, 1631, 1864, 2786, 3184, 3262, 3728, 5572, 6368, 6524, 7456, 11144, 12736, 13048, 14912, 22288, 26096, 44576, 46367, 52192, 89152, 92734, 104384, 185468, 324569, 370936, 649138, 741872, 1298276, 1483744, 2596552, 2967488, 5193104, 10386208, 20772416]

約数ペア:

[(1, 20772416), (2, 10386208), (4, 5193104), (7, 2967488), (8, 2596552), (14, 1483744), (16, 1298276), (28, 741872), (32, 649138), (56, 370936), (64, 324569), (112, 185468), (199, 104384), (224, 92734), (233, 89152), (398, 52192), (448, 46367), (466, 44576), (796, 26096), (932, 22288), (1393, 14912), (1592, 13048), (1631, 12736), (1864, 11144), (2786, 7456), (3184, 6524), (3262, 6368), (3728, 5572)]