20216635105

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1\times {\mathrm{6247}}^1$

素因数の和:6645

約数の個数: 32

約数和(自身を含む): 25652588544

約数和(自身を除く): 5435953439

約数列:

[1, 5, 23, 107, 115, 263, 535, 1315, 2461, 6049, 6247, 12305, 28141, 30245, 31235, 140705, 143681, 647243, 668429, 718405, 1642961, 3236215, 3342145, 8214805, 15373867, 37788103, 76869335, 175796827, 188940515, 878984135, 4043327021, 20216635105]

約数ペア:

[(1, 20216635105), (5, 4043327021), (23, 878984135), (107, 188940515), (115, 175796827), (263, 76869335), (535, 37788103), (1315, 15373867), (2461, 8214805), (6049, 3342145), (6247, 3236215), (12305, 1642961), (28141, 718405), (30245, 668429), (31235, 647243), (140705, 143681)]