642903190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{50503}}^1$

素因数の和:50596

約数の個数: 32

約数和(自身を含む): 1236337920

約数和(自身を除く): 593434730

約数列:

[1, 2, 5, 10, 19, 38, 67, 95, 134, 190, 335, 670, 1273, 2546, 6365, 12730, 50503, 101006, 252515, 505030, 959557, 1919114, 3383701, 4797785, 6767402, 9595570, 16918505, 33837010, 64290319, 128580638, 321451595, 642903190]

約数ペア:

[(1, 642903190), (2, 321451595), (5, 128580638), (10, 64290319), (19, 33837010), (38, 16918505), (67, 9595570), (95, 6767402), (134, 4797785), (190, 3383701), (335, 1919114), (670, 959557), (1273, 505030), (2546, 252515), (6365, 101006), (12730, 50503)]