202151720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 471016080

約数和(自身を除く): 268864360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 137, 148, 185, 274, 296, 370, 548, 685, 740, 997, 1096, 1370, 1480, 1994, 2740, 3988, 4985, 5069, 5480, 7976, 9970, 10138, 19940, 20276, 25345, 36889, 39880, 40552, 50690, 73778, 101380, 136589, 147556, 184445, 202760, 273178, 295112, 368890, 546356, 682945, 737780, 1092712, 1365890, 1475560, 2731780, 5053793, 5463560, 10107586, 20215172, 25268965, 40430344, 50537930, 101075860, 202151720]

約数ペア:

[(1, 202151720), (2, 101075860), (4, 50537930), (5, 40430344), (8, 25268965), (10, 20215172), (20, 10107586), (37, 5463560), (40, 5053793), (74, 2731780), (137, 1475560), (148, 1365890), (185, 1092712), (274, 737780), (296, 682945), (370, 546356), (548, 368890), (685, 295112), (740, 273178), (997, 202760), (1096, 184445), (1370, 147556), (1480, 136589), (1994, 101380), (2740, 73778), (3988, 50690), (4985, 40552), (5069, 39880), (5480, 36889), (7976, 25345), (9970, 20276), (10138, 19940)]