20005949696

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{797}}^1\times {\mathrm{3163}}^1$

素因数の和:4007

約数の個数: 72

約数和(自身を含む): 41286706944

約数和(自身を除く): 21280757248

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 797, 992, 1594, 1984, 3163, 3188, 3968, 6326, 6376, 7936, 12652, 12752, 24707, 25304, 25504, 49414, 50608, 51008, 98053, 98828, 101216, 102016, 196106, 197656, 202432, 204032, 392212, 395312, 404864, 784424, 790624, 809728, 1568848, 1581248, 2520911, 3137696, 3162496, 5041822, 6275392, 6324992, 10083644, 12550784, 20167288, 25101568, 40334576, 78148241, 80669152, 156296482, 161338304, 312592964, 322676608, 625185928, 645353216, 1250371856, 2500743712, 5001487424, 10002974848, 20005949696]

約数ペア:

[(1, 20005949696), (2, 10002974848), (4, 5001487424), (8, 2500743712), (16, 1250371856), (31, 645353216), (32, 625185928), (62, 322676608), (64, 312592964), (124, 161338304), (128, 156296482), (248, 80669152), (256, 78148241), (496, 40334576), (797, 25101568), (992, 20167288), (1594, 12550784), (1984, 10083644), (3163, 6324992), (3188, 6275392), (3968, 5041822), (6326, 3162496), (6376, 3137696), (7936, 2520911), (12652, 1581248), (12752, 1568848), (24707, 809728), (25304, 790624), (25504, 784424), (49414, 404864), (50608, 395312), (51008, 392212), (98053, 204032), (98828, 202432), (101216, 197656), (102016, 196106)]