20292580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13177}}^1$

素因数の和:13204

約数の個数: 48

約数和(自身を含む): 53133696

約数和(自身を除く): 32841116

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13177, 26354, 52708, 65885, 92239, 131770, 144947, 184478, 263540, 289894, 368956, 461195, 579788, 724735, 922390, 1014629, 1449470, 1844780, 2029258, 2898940, 4058516, 5073145, 10146290, 20292580]

約数ペア:

[(1, 20292580), (2, 10146290), (4, 5073145), (5, 4058516), (7, 2898940), (10, 2029258), (11, 1844780), (14, 1449470), (20, 1014629), (22, 922390), (28, 724735), (35, 579788), (44, 461195), (55, 368956), (70, 289894), (77, 263540), (110, 184478), (140, 144947), (154, 131770), (220, 92239), (308, 65885), (385, 52708), (770, 26354), (1540, 13177)]