20751245

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1613}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 26030592

約数和(自身を除く): 5279347

約数列:

[1, 5, 31, 83, 155, 415, 1613, 2573, 8065, 12865, 50003, 133879, 250015, 669395, 4150249, 20751245]

約数ペア:

[(1, 20751245), (5, 4150249), (31, 669395), (83, 250015), (155, 133879), (415, 50003), (1613, 12865), (2573, 8065)]