20876580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115981}}^1$

素因数の和:115996

約数の個数: 36

約数和(自身を含む): 63326172

約数和(自身を除く): 42449592

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115981, 231962, 347943, 463924, 579905, 695886, 1043829, 1159810, 1391772, 1739715, 2087658, 2319620, 3479430, 4175316, 5219145, 6958860, 10438290, 20876580]

約数ペア:

[(1, 20876580), (2, 10438290), (3, 6958860), (4, 5219145), (5, 4175316), (6, 3479430), (9, 2319620), (10, 2087658), (12, 1739715), (15, 1391772), (18, 1159810), (20, 1043829), (30, 695886), (36, 579905), (45, 463924), (60, 347943), (90, 231962), (180, 115981)]