208672005

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{1597}}^1$

素因数の和:1917

約数の個数: 32

約数和(自身を含む): 346088448

約数和(自身を除く): 137416443

約数列:

[1, 3, 5, 15, 31, 93, 155, 281, 465, 843, 1405, 1597, 4215, 4791, 7985, 8711, 23955, 26133, 43555, 49507, 130665, 148521, 247535, 448757, 742605, 1346271, 2243785, 6731355, 13911467, 41734401, 69557335, 208672005]

約数ペア:

[(1, 208672005), (3, 69557335), (5, 41734401), (15, 13911467), (31, 6731355), (93, 2243785), (155, 1346271), (281, 742605), (465, 448757), (843, 247535), (1405, 148521), (1597, 130665), (4215, 49507), (4791, 43555), (7985, 26133), (8711, 23955)]