20682355

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 27498240

約数和(自身を除く): 6815885

約数列:

[1, 5, 19, 43, 61, 83, 95, 215, 305, 415, 817, 1159, 1577, 2623, 3569, 4085, 5063, 5795, 7885, 13115, 17845, 25315, 49837, 67811, 96197, 217709, 249185, 339055, 480985, 1088545, 4136471, 20682355]

約数ペア:

[(1, 20682355), (5, 4136471), (19, 1088545), (43, 480985), (61, 339055), (83, 249185), (95, 217709), (215, 96197), (305, 67811), (415, 49837), (817, 25315), (1159, 17845), (1577, 13115), (2623, 7885), (3569, 5795), (4085, 5063)]