15721880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{743}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 37028880

約数和(自身を除く): 21307000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 743, 920, 1058, 1486, 2116, 2645, 2972, 3715, 4232, 5290, 5944, 7430, 10580, 14860, 17089, 21160, 29720, 34178, 68356, 85445, 136712, 170890, 341780, 393047, 683560, 786094, 1572188, 1965235, 3144376, 3930470, 7860940, 15721880]

約数ペア:

[(1, 15721880), (2, 7860940), (4, 3930470), (5, 3144376), (8, 1965235), (10, 1572188), (20, 786094), (23, 683560), (40, 393047), (46, 341780), (92, 170890), (115, 136712), (184, 85445), (230, 68356), (460, 34178), (529, 29720), (743, 21160), (920, 17089), (1058, 14860), (1486, 10580), (2116, 7430), (2645, 5944), (2972, 5290), (3715, 4232)]