1643724905

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 2042599680

約数和(自身を除く): 398874775

約数列:

[1, 5, 71, 107, 109, 355, 397, 535, 545, 1985, 7597, 7739, 11663, 28187, 37985, 38695, 42479, 43273, 58315, 140935, 212395, 216365, 828073, 3016009, 3072383, 4140365, 4630211, 15080045, 15361915, 23151055, 328744981, 1643724905]

約数ペア:

[(1, 1643724905), (5, 328744981), (71, 23151055), (107, 15361915), (109, 15080045), (355, 4630211), (397, 4140365), (535, 3072383), (545, 3016009), (1985, 828073), (7597, 216365), (7739, 212395), (11663, 140935), (28187, 58315), (37985, 43273), (38695, 42479)]