20161372

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{977}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 44690688

約数和(自身を除く): 24529316

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 67, 77, 134, 154, 268, 308, 469, 737, 938, 977, 1474, 1876, 1954, 2948, 3908, 5159, 6839, 10318, 10747, 13678, 20636, 21494, 27356, 42988, 65459, 75229, 130918, 150458, 261836, 300916, 458213, 720049, 916426, 1440098, 1832852, 2880196, 5040343, 10080686, 20161372]

約数ペア:

[(1, 20161372), (2, 10080686), (4, 5040343), (7, 2880196), (11, 1832852), (14, 1440098), (22, 916426), (28, 720049), (44, 458213), (67, 300916), (77, 261836), (134, 150458), (154, 130918), (268, 75229), (308, 65459), (469, 42988), (737, 27356), (938, 21494), (977, 20636), (1474, 13678), (1876, 10747), (1954, 10318), (2948, 6839), (3908, 5159)]