20439328

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7019}}^1$

素因数の和:7049

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 29093792

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7019, 14038, 28076, 49133, 56152, 91247, 98266, 112304, 182494, 196532, 224608, 364988, 393064, 638729, 729976, 786128, 1277458, 1459952, 1572256, 2554916, 2919904, 5109832, 10219664, 20439328]

約数ペア:

[(1, 20439328), (2, 10219664), (4, 5109832), (7, 2919904), (8, 2554916), (13, 1572256), (14, 1459952), (16, 1277458), (26, 786128), (28, 729976), (32, 638729), (52, 393064), (56, 364988), (91, 224608), (104, 196532), (112, 182494), (182, 112304), (208, 98266), (224, 91247), (364, 56152), (416, 49133), (728, 28076), (1456, 14038), (2912, 7019)]