20021644805

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{383}}^1\times {\mathrm{1283}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 25027522560

約数和(自身を除く): 5005877755

約数列:

[1, 5, 29, 145, 281, 383, 1283, 1405, 1915, 6415, 8149, 11107, 37207, 40745, 55535, 107623, 186035, 360523, 491389, 538115, 1802615, 2456945, 3121067, 10455167, 14250281, 15605335, 52275835, 71251405, 138080309, 690401545, 4004328961, 20021644805]

約数ペア:

[(1, 20021644805), (5, 4004328961), (29, 690401545), (145, 138080309), (281, 71251405), (383, 52275835), (1283, 15605335), (1405, 14250281), (1915, 10455167), (6415, 3121067), (8149, 2456945), (11107, 1802615), (37207, 538115), (40745, 491389), (55535, 360523), (107623, 186035)]