646500512

素因数分解:

$2^5\times 7^2\times {\mathrm{103}}^1\times {\mathrm{4003}}^1$

素因数の和:4130

約数の個数: 72

約数和(自身を含む): 1495349856

約数和(自身を除く): 848849344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 103, 112, 196, 206, 224, 392, 412, 721, 784, 824, 1442, 1568, 1648, 2884, 3296, 4003, 5047, 5768, 8006, 10094, 11536, 16012, 20188, 23072, 28021, 32024, 40376, 56042, 64048, 80752, 112084, 128096, 161504, 196147, 224168, 392294, 412309, 448336, 784588, 824618, 896672, 1569176, 1649236, 2886163, 3138352, 3298472, 5772326, 6276704, 6596944, 11544652, 13193888, 20203141, 23089304, 40406282, 46178608, 80812564, 92357216, 161625128, 323250256, 646500512]

約数ペア:

[(1, 646500512), (2, 323250256), (4, 161625128), (7, 92357216), (8, 80812564), (14, 46178608), (16, 40406282), (28, 23089304), (32, 20203141), (49, 13193888), (56, 11544652), (98, 6596944), (103, 6276704), (112, 5772326), (196, 3298472), (206, 3138352), (224, 2886163), (392, 1649236), (412, 1569176), (721, 896672), (784, 824618), (824, 784588), (1442, 448336), (1568, 412309), (1648, 392294), (2884, 224168), (3296, 196147), (4003, 161504), (5047, 128096), (5768, 112084), (8006, 80752), (10094, 64048), (11536, 56042), (16012, 40376), (20188, 32024), (23072, 28021)]