281143460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{25147}}^1$

素因数の和:25212

約数の個数: 48

約数和(自身を含む): 650629056

約数和(自身を除く): 369485596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 25147, 50294, 100588, 125735, 251470, 326911, 502940, 653822, 1081321, 1307644, 1634555, 2162642, 3269110, 4325284, 5406605, 6538220, 10813210, 14057173, 21626420, 28114346, 56228692, 70285865, 140571730, 281143460]

約数ペア:

[(1, 281143460), (2, 140571730), (4, 70285865), (5, 56228692), (10, 28114346), (13, 21626420), (20, 14057173), (26, 10813210), (43, 6538220), (52, 5406605), (65, 4325284), (86, 3269110), (130, 2162642), (172, 1634555), (215, 1307644), (260, 1081321), (430, 653822), (559, 502940), (860, 326911), (1118, 251470), (2236, 125735), (2795, 100588), (5590, 50294), (11180, 25147)]