20287652

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 44620800

約数和(自身を除く): 24333148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 199, 308, 331, 398, 662, 796, 1324, 1393, 2189, 2317, 2786, 3641, 4378, 4634, 5572, 7282, 8756, 9268, 14564, 15323, 25487, 30646, 50974, 61292, 65869, 101948, 131738, 263476, 461083, 724559, 922166, 1449118, 1844332, 2898236, 5071913, 10143826, 20287652]

約数ペア:

[(1, 20287652), (2, 10143826), (4, 5071913), (7, 2898236), (11, 1844332), (14, 1449118), (22, 922166), (28, 724559), (44, 461083), (77, 263476), (154, 131738), (199, 101948), (308, 65869), (331, 61292), (398, 50974), (662, 30646), (796, 25487), (1324, 15323), (1393, 14564), (2189, 9268), (2317, 8756), (2786, 7282), (3641, 5572), (4378, 4634)]