20329288

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5113}}^1$

素因数の和:5197

約数の個数: 32

約数和(自身を含む): 44184960

約数和(自身を除く): 23855672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5113, 10226, 20452, 35791, 40904, 71582, 143164, 286328, 363023, 726046, 1452092, 2541161, 2904184, 5082322, 10164644, 20329288]

約数ペア:

[(1, 20329288), (2, 10164644), (4, 5082322), (7, 2904184), (8, 2541161), (14, 1452092), (28, 726046), (56, 363023), (71, 286328), (142, 143164), (284, 71582), (497, 40904), (568, 35791), (994, 20452), (1988, 10226), (3976, 5113)]