20257312

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21655328

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 83, 116, 166, 232, 263, 332, 464, 526, 664, 928, 1052, 1328, 2104, 2407, 2656, 4208, 4814, 7627, 8416, 9628, 15254, 19256, 21829, 30508, 38512, 43658, 61016, 77024, 87316, 122032, 174632, 244064, 349264, 633041, 698528, 1266082, 2532164, 5064328, 10128656, 20257312]

約数ペア:

[(1, 20257312), (2, 10128656), (4, 5064328), (8, 2532164), (16, 1266082), (29, 698528), (32, 633041), (58, 349264), (83, 244064), (116, 174632), (166, 122032), (232, 87316), (263, 77024), (332, 61016), (464, 43658), (526, 38512), (664, 30508), (928, 21829), (1052, 19256), (1328, 15254), (2104, 9628), (2407, 8416), (2656, 7627), (4208, 4814)]