20178038780

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1447}}^1\times {\mathrm{4441}}^1$

素因数の和:6054

約数の個数: 48

約数和(自身を含む): 42682858176

約数和(自身を除く): 22504819396

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1447, 1570, 2894, 3140, 4441, 5788, 7235, 8882, 14470, 17764, 22205, 28940, 44410, 88820, 227179, 454358, 697237, 908716, 1135895, 1394474, 2271790, 2788948, 3486185, 4543580, 6426127, 6972370, 12852254, 13944740, 25704508, 32130635, 64261270, 128522540, 1008901939, 2017803878, 4035607756, 5044509695, 10089019390, 20178038780]

約数ペア:

[(1, 20178038780), (2, 10089019390), (4, 5044509695), (5, 4035607756), (10, 2017803878), (20, 1008901939), (157, 128522540), (314, 64261270), (628, 32130635), (785, 25704508), (1447, 13944740), (1570, 12852254), (2894, 6972370), (3140, 6426127), (4441, 4543580), (5788, 3486185), (7235, 2788948), (8882, 2271790), (14470, 1394474), (17764, 1135895), (22205, 908716), (28940, 697237), (44410, 454358), (88820, 227179)]