18428877865

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1\times {\mathrm{3917}}^1$

素因数の和:4321

約数の個数: 32

約数和(自身を含む): 23003988480

約数和(自身を除く): 4575110615

約数列:

[1, 5, 43, 79, 215, 277, 395, 1385, 3397, 3917, 11911, 16985, 19585, 21883, 59555, 109415, 168431, 309443, 842155, 940969, 1085009, 1547215, 4704845, 5425045, 13306049, 46655387, 66530245, 85715711, 233276935, 428578555, 3685775573, 18428877865]

約数ペア:

[(1, 18428877865), (5, 3685775573), (43, 428578555), (79, 233276935), (215, 85715711), (277, 66530245), (395, 46655387), (1385, 13306049), (3397, 5425045), (3917, 4704845), (11911, 1547215), (16985, 1085009), (19585, 940969), (21883, 842155), (59555, 309443), (109415, 168431)]