263906820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{4201}}^1$

素因数の和:4565

約数の個数: 72

約数和(自身を含む): 803002200

約数和(自身を除く): 539095380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 349, 698, 1047, 1396, 1745, 2094, 3141, 3490, 4188, 4201, 5235, 6282, 6980, 8402, 10470, 12564, 12603, 15705, 16804, 20940, 21005, 25206, 31410, 37809, 42010, 50412, 62820, 63015, 75618, 84020, 126030, 151236, 189045, 252060, 378090, 756180, 1466149, 2932298, 4398447, 5864596, 7330745, 8796894, 13195341, 14661490, 17593788, 21992235, 26390682, 29322980, 43984470, 52781364, 65976705, 87968940, 131953410, 263906820]

約数ペア:

[(1, 263906820), (2, 131953410), (3, 87968940), (4, 65976705), (5, 52781364), (6, 43984470), (9, 29322980), (10, 26390682), (12, 21992235), (15, 17593788), (18, 14661490), (20, 13195341), (30, 8796894), (36, 7330745), (45, 5864596), (60, 4398447), (90, 2932298), (180, 1466149), (349, 756180), (698, 378090), (1047, 252060), (1396, 189045), (1745, 151236), (2094, 126030), (3141, 84020), (3490, 75618), (4188, 63015), (4201, 62820), (5235, 50412), (6282, 42010), (6980, 37809), (8402, 31410), (10470, 25206), (12564, 21005), (12603, 20940), (15705, 16804)]