20030845

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 27302400

約数和(自身を除く): 7271555

約数列:

[1, 5, 17, 19, 79, 85, 95, 157, 323, 395, 785, 1343, 1501, 1615, 2669, 2983, 6715, 7505, 12403, 13345, 14915, 25517, 50711, 62015, 127585, 210851, 235657, 253555, 1054255, 1178285, 4006169, 20030845]

約数ペア:

[(1, 20030845), (5, 4006169), (17, 1178285), (19, 1054255), (79, 253555), (85, 235657), (95, 210851), (157, 127585), (323, 62015), (395, 50711), (785, 25517), (1343, 14915), (1501, 13345), (1615, 12403), (2669, 7505), (2983, 6715)]