20790756

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 120

約数和(自身を含む): 63423360

約数和(自身を除く): 42632604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 89, 103, 108, 126, 162, 178, 189, 206, 252, 267, 309, 324, 356, 378, 412, 534, 567, 618, 623, 721, 756, 801, 927, 1068, 1134, 1236, 1246, 1442, 1602, 1854, 1869, 2163, 2268, 2403, 2492, 2781, 2884, 3204, 3708, 3738, 4326, 4806, 5562, 5607, 6489, 7209, 7476, 8343, 8652, 9167, 9612, 11124, 11214, 12978, 14418, 16686, 16821, 18334, 19467, 22428, 25956, 27501, 28836, 33372, 33642, 36668, 38934, 50463, 55002, 58401, 64169, 67284, 77868, 82503, 100926, 110004, 116802, 128338, 165006, 192507, 201852, 233604, 247509, 256676, 330012, 385014, 495018, 577521, 742527, 770028, 990036, 1155042, 1485054, 1732563, 2310084, 2970108, 3465126, 5197689, 6930252, 10395378, 20790756]

約数ペア:

[(1, 20790756), (2, 10395378), (3, 6930252), (4, 5197689), (6, 3465126), (7, 2970108), (9, 2310084), (12, 1732563), (14, 1485054), (18, 1155042), (21, 990036), (27, 770028), (28, 742527), (36, 577521), (42, 495018), (54, 385014), (63, 330012), (81, 256676), (84, 247509), (89, 233604), (103, 201852), (108, 192507), (126, 165006), (162, 128338), (178, 116802), (189, 110004), (206, 100926), (252, 82503), (267, 77868), (309, 67284), (324, 64169), (356, 58401), (378, 55002), (412, 50463), (534, 38934), (567, 36668), (618, 33642), (623, 33372), (721, 28836), (756, 27501), (801, 25956), (927, 22428), (1068, 19467), (1134, 18334), (1236, 16821), (1246, 16686), (1442, 14418), (1602, 12978), (1854, 11214), (1869, 11124), (2163, 9612), (2268, 9167), (2403, 8652), (2492, 8343), (2781, 7476), (2884, 7209), (3204, 6489), (3708, 5607), (3738, 5562), (4326, 4806)]