20407746475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{7537}}^1$

素因数の和:7864

約数の個数: 48

約数和(自身を含む): 28063793088

約数和(自身を除く): 7656046613

約数列:

[1, 5, 17, 23, 25, 85, 115, 277, 391, 425, 575, 1385, 1955, 4709, 6371, 6925, 7537, 9775, 23545, 31855, 37685, 108307, 117725, 128129, 159275, 173351, 188425, 541535, 640645, 866755, 2087749, 2707675, 2946967, 3203225, 4333775, 10438745, 14734835, 35491733, 48018227, 52193725, 73674175, 177458665, 240091135, 816309859, 887293325, 1200455675, 4081549295, 20407746475]

約数ペア:

[(1, 20407746475), (5, 4081549295), (17, 1200455675), (23, 887293325), (25, 816309859), (85, 240091135), (115, 177458665), (277, 73674175), (391, 52193725), (425, 48018227), (575, 35491733), (1385, 14734835), (1955, 10438745), (4709, 4333775), (6371, 3203225), (6925, 2946967), (7537, 2707675), (9775, 2087749), (23545, 866755), (31855, 640645), (37685, 541535), (108307, 188425), (117725, 173351), (128129, 159275)]