687141505

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{787}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 878727168

約数和(自身を除く): 191585663

約数列:

[1, 5, 31, 43, 131, 155, 215, 655, 787, 1333, 3935, 4061, 5633, 6665, 20305, 24397, 28165, 33841, 103097, 121985, 169205, 174623, 515485, 873115, 1049071, 3196007, 4433171, 5245355, 15980035, 22165855, 137428301, 687141505]

約数ペア:

[(1, 687141505), (5, 137428301), (31, 22165855), (43, 15980035), (131, 5245355), (155, 4433171), (215, 3196007), (655, 1049071), (787, 873115), (1333, 515485), (3935, 174623), (4061, 169205), (5633, 121985), (6665, 103097), (20305, 33841), (24397, 28165)]